A378398 - OEIS

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A378398 as a triangular array

												2
											1		1
										2		1		2
									2		2		1		2
								1		1		2		2		1
							2		1		2		1		1		2
						1		2		1		2		2		1		1
					2		2		2		2		2		2		1		2
				2		1		1		1		1		2		2		1		2
			1		2		1		1		2		1		1		2		2		1
		2		2		2		2		2		1		1		2		1		1		2
	2		1		2		1		1		2		2		1		2		2		1		2

A378398 as a square array

2	1	2	2	1	2	1	2	2	1	2	2
1	1	2	1	1	2	2	1	2	2	1
2	1	2	2	1	2	1	1	2	2
2	2	1	2	2	1	1	2	1
1	1	2	2	1	2	2	1
2	1	2	2	1	1	2
1	1	2	1	1	2
2	1	2	2	1
2	2	1	2
1	1	2
2	1
2

A378398 as an upper right triangle

2	1	2	2	1	2	1	2	2	1	2	2
	1	1	2	1	1	2	2	1	2	2	1
		2	1	2	2	1	2	1	1	2	2
			2	2	1	2	2	1	1	2	1
				1	1	2	2	1	2	2	1
					2	1	2	2	1	1	2
						1	1	2	1	1	2
							2	1	2	2	1
								2	2	1	2
									1	1	2
										2	1
											2