A131431 - OEIS

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A131431 as a triangular array

													1
												0		4
											0		0		7
										0		0		0		10
									0		0		0		0		13
								0		0		0		0		0		16
							0		0		0		0		0		0		19
						0		0		0		0		0		0		0		22
					0		0		0		0		0		0		0		0		25
				0		0		0		0		0		0		0		0		0		28
			0		0		0		0		0		0		0		0		0		0		31
		0		0		0		0		0		0		0		0		0		0		0		34
	0		0		0		0		0		0		0		0		0		0		0		0		37

A131431 as a square array

1	0	0	0	0	0	0	0	0	0	0	0	0
4	0	0	0	0	0	0	0	0	0	0	0
7	0	0	0	0	0	0	0	0	0	0
10	0	0	0	0	0	0	0	0	0
13	0	0	0	0	0	0	0	0
16	0	0	0	0	0	0	0
19	0	0	0	0	0	0
22	0	0	0	0	0
25	0	0	0	0
28	0	0	0
31	0	0
34	0
37

A131431 as an upper right triangle

1	0	0	0	0	0	0	0	0	0	0	0	0
	4	0	0	0	0	0	0	0	0	0	0	0
		7	0	0	0	0	0	0	0	0	0	0
			10	0	0	0	0	0	0	0	0	0
				13	0	0	0	0	0	0	0	0
					16	0	0	0	0	0	0	0
						19	0	0	0	0	0	0
							22	0	0	0	0	0
								25	0	0	0	0
									28	0	0	0
										31	0	0
											34	0
												37