A139600 - OEIS

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A139600 as a triangular array

												0
											0		1
										0		1		2
									0		1		3		3
								0		1		4		6		4
							0		1		5		9		10		5
						0		1		6		12		16		15		6
					0		1		7		15		22		25		21		7
				0		1		8		18		28		35		36		28		8
			0		1		9		21		34		45		51		49		36		9
		0		1		10		24		40		55		66		70		64		45		10
	0		1		11		27		46		65		81		91		92		81		55		11

A139600 as a square array

0	0	0	0	0	0	0	0	0	0	0	0
1	1	1	1	1	1	1	1	1	1	1
2	3	4	5	6	7	8	9	10	11
3	6	9	12	15	18	21	24	27
4	10	16	22	28	34	40	46
5	15	25	35	45	55	65
6	21	36	51	66	81
7	28	49	70	91
8	36	64	92
9	45	81
10	55
11

A139600 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0	0
	1	1	1	1	1	1	1	1	1	1	1
		2	3	4	5	6	7	8	9	10	11
			3	6	9	12	15	18	21	24	27
				4	10	16	22	28	34	40	46
					5	15	25	35	45	55	65
						6	21	36	51	66	81
							7	28	49	70	91
								8	36	64	92
									9	45	81
										10	55
											11