A131415 - OEIS

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A131415 as a triangular array

									1
								3		1
							6		4		1
						11		10		5		1
					20		21		15		6		1
				37		41		36		21		7		1
			70		78		77		57		28		8		1
		135		148		155		134		85		36		9		1
	264		283		303		289		219		121		45		10		1
521		547		586		592		508		340		166		55		11		1

A131415 as a square array

1	3	6	11	20	37	70	135	264	521
1	4	10	21	41	78	148	283	547
1	5	15	36	77	155	303	586
1	6	21	57	134	289	592
1	7	28	85	219	508
1	8	36	121	340
1	9	45	166
1	10	55
1	11
1

A131415 as an upper right triangle

1	3	6	11	20	37	70	135	264	521
	1	4	10	21	41	78	148	283	547
		1	5	15	36	77	155	303	586
			1	6	21	57	134	289	592
				1	7	28	85	219	508
					1	8	36	121	340
						1	9	45	166
							1	10	55
								1	11
									1

									1
								3		1
							6		4		1
						11		10		5		1
					20		21		15		6		1
				37		41		36		21		7		1
			70		78		77		57		28		8		1
		135		148		155		134		85		36		9		1
	264		283		303		289		219		121		45		10		1
521		547		586		592		508		340		166		55		11		1

1	3	6	11	20	37	70	135	264	521
1	4	10	21	41	78	148	283	547
1	5	15	36	77	155	303	586
1	6	21	57	134	289	592
1	7	28	85	219	508
1	8	36	121	340
1	9	45	166
1	10	55
1	11
1

1	3	6	11	20	37	70	135	264	521
	1	4	10	21	41	78	148	283	547
		1	5	15	36	77	155	303	586
			1	6	21	57	134	289	592
				1	7	28	85	219	508
					1	8	36	121	340
						1	9	45	166
							1	10	55
								1	11
									1

									1
								3		1
							6		4		1
						11		10		5		1
					20		21		15		6		1
				37		41		36		21		7		1
			70		78		77		57		28		8		1
		135		148		155		134		85		36		9		1
	264		283		303		289		219		121		45		10		1
521		547		586		592		508		340		166		55		11		1

1	3	6	11	20	37	70	135	264	521
1	4	10	21	41	78	148	283	547
1	5	15	36	77	155	303	586
1	6	21	57	134	289	592
1	7	28	85	219	508
1	8	36	121	340
1	9	45	166
1	10	55
1	11
1

1	3	6	11	20	37	70	135	264	521
	1	4	10	21	41	78	148	283	547
		1	5	15	36	77	155	303	586
			1	6	21	57	134	289	592
				1	7	28	85	219	508
					1	8	36	121	340
						1	9	45	166
							1	10	55
								1	11
									1

									1
								3		1
							6		4		1
						11		10		5		1
					20		21		15		6		1
				37		41		36		21		7		1
			70		78		77		57		28		8		1
		135		148		155		134		85		36		9		1
	264		283		303		289		219		121		45		10		1
521		547		586		592		508		340		166		55		11		1

1	3	6	11	20	37	70	135	264	521
1	4	10	21	41	78	148	283	547
1	5	15	36	77	155	303	586
1	6	21	57	134	289	592
1	7	28	85	219	508
1	8	36	121	340
1	9	45	166
1	10	55
1	11
1

1	3	6	11	20	37	70	135	264	521
	1	4	10	21	41	78	148	283	547
		1	5	15	36	77	155	303	586
			1	6	21	57	134	289	592
				1	7	28	85	219	508
					1	8	36	121	340
						1	9	45	166
							1	10	55
								1	11
									1