A204421 - OEIS

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A204421 as a triangular array

													1
												2		2
											0		0		0
										1		1		1		1
									2		2		2		2		2
								0		0		0		0		0		0
							1		1		1		1		1		1		1
						2		2		2		2		2		2		2		2
					0		0		0		0		0		0		0		0		0
				1		1		1		1		1		1		1		1		1		1
			2		2		2		2		2		2		2		2		2		2		2
		0		0		0		0		0		0		0		0		0		0		0		0
	1		1		1		1		1		1		1		1		1		1		1		1		1
2		2		2		2		2		2		2		2

A204421 as a square array

1	2	0	1	2	0	1	2	0	1	2	0	1	2
2	0	1	2	0	1	2	0	1	2	0	1	2
0	1	2	0	1	2	0	1	2	0	1	2
1	2	0	1	2	0	1	2	0	1	2
2	0	1	2	0	1	2	0	1	2
0	1	2	0	1	2	0	1	2
1	2	0	1	2	0	1	2
2	0	1	2	0	1	2
0	1	2	0	1
1	2	0	1
2	0	1
0	1
1

A204421 as an upper right triangle

1	2	0	1	2	0	1	2	0	1	2	0	1	2
	2	0	1	2	0	1	2	0	1	2	0	1	2
		0	1	2	0	1	2	0	1	2	0	1	2
			1	2	0	1	2	0	1	2	0	1	2
				2	0	1	2	0	1	2	0	1	2
					0	1	2	0	1	2	0	1	2
						1	2	0	1	2	0	1	2
							2	0	1	2	0	1	2
								0	1	2	0	1
									1	2	0	1
										2	0	1
											0	1
												1

													1
												2		2
											0		0		0
										1		1		1		1
									2		2		2		2		2
								0		0		0		0		0		0
							1		1		1		1		1		1		1
						2		2		2		2		2		2		2		2
					0		0		0		0		0		0		0		0		0
				1		1		1		1		1		1		1		1		1		1
			2		2		2		2		2		2		2		2		2		2		2
		0		0		0		0		0		0		0		0		0		0		0		0
	1		1		1		1		1		1		1		1		1		1		1		1		1
2		2		2		2		2		2		2		2

1	2	0	1	2	0	1	2	0	1	2	0	1	2
2	0	1	2	0	1	2	0	1	2	0	1	2
0	1	2	0	1	2	0	1	2	0	1	2
1	2	0	1	2	0	1	2	0	1	2
2	0	1	2	0	1	2	0	1	2
0	1	2	0	1	2	0	1	2
1	2	0	1	2	0	1	2
2	0	1	2	0	1	2
0	1	2	0	1
1	2	0	1
2	0	1
0	1
1

1	2	0	1	2	0	1	2	0	1	2	0	1	2
	2	0	1	2	0	1	2	0	1	2	0	1	2
		0	1	2	0	1	2	0	1	2	0	1	2
			1	2	0	1	2	0	1	2	0	1	2
				2	0	1	2	0	1	2	0	1	2
					0	1	2	0	1	2	0	1	2
						1	2	0	1	2	0	1	2
							2	0	1	2	0	1	2
								0	1	2	0	1
									1	2	0	1
										2	0	1
											0	1
												1

													1
												2		2
											0		0		0
										1		1		1		1
									2		2		2		2		2
								0		0		0		0		0		0
							1		1		1		1		1		1		1
						2		2		2		2		2		2		2		2
					0		0		0		0		0		0		0		0		0
				1		1		1		1		1		1		1		1		1		1
			2		2		2		2		2		2		2		2		2		2		2
		0		0		0		0		0		0		0		0		0		0		0		0
	1		1		1		1		1		1		1		1		1		1		1		1		1
2		2		2		2		2		2		2		2

1	2	0	1	2	0	1	2	0	1	2	0	1	2
2	0	1	2	0	1	2	0	1	2	0	1	2
0	1	2	0	1	2	0	1	2	0	1	2
1	2	0	1	2	0	1	2	0	1	2
2	0	1	2	0	1	2	0	1	2
0	1	2	0	1	2	0	1	2
1	2	0	1	2	0	1	2
2	0	1	2	0	1	2
0	1	2	0	1
1	2	0	1
2	0	1
0	1
1

1	2	0	1	2	0	1	2	0	1	2	0	1	2
	2	0	1	2	0	1	2	0	1	2	0	1	2
		0	1	2	0	1	2	0	1	2	0	1	2
			1	2	0	1	2	0	1	2	0	1	2
				2	0	1	2	0	1	2	0	1	2
					0	1	2	0	1	2	0	1	2
						1	2	0	1	2	0	1	2
							2	0	1	2	0	1	2
								0	1	2	0	1
									1	2	0	1
										2	0	1
											0	1
												1

													1
												2		2
											0		0		0
										1		1		1		1
									2		2		2		2		2
								0		0		0		0		0		0
							1		1		1		1		1		1		1
						2		2		2		2		2		2		2		2
					0		0		0		0		0		0		0		0		0
				1		1		1		1		1		1		1		1		1		1
			2		2		2		2		2		2		2		2		2		2		2
		0		0		0		0		0		0		0		0		0		0		0		0
	1		1		1		1		1		1		1		1		1		1		1		1		1
2		2		2		2		2		2		2		2

1	2	0	1	2	0	1	2	0	1	2	0	1	2
2	0	1	2	0	1	2	0	1	2	0	1	2
0	1	2	0	1	2	0	1	2	0	1	2
1	2	0	1	2	0	1	2	0	1	2
2	0	1	2	0	1	2	0	1	2
0	1	2	0	1	2	0	1	2
1	2	0	1	2	0	1	2
2	0	1	2	0	1	2
0	1	2	0	1
1	2	0	1
2	0	1
0	1
1

1	2	0	1	2	0	1	2	0	1	2	0	1	2
	2	0	1	2	0	1	2	0	1	2	0	1	2
		0	1	2	0	1	2	0	1	2	0	1	2
			1	2	0	1	2	0	1	2	0	1	2
				2	0	1	2	0	1	2	0	1	2
					0	1	2	0	1	2	0	1	2
						1	2	0	1	2	0	1	2
							2	0	1	2	0	1	2
								0	1	2	0	1
									1	2	0	1
										2	0	1
											0	1
												1