A253609 - OEIS

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A253609 as a triangular array

							2
						4		3
					6		5		9
				14		19		11		15
			29		57		94		40		22
		65		171		483		269		124		23
	137		549		2549		1996		1071		187		30
277		1786

A253609 as a square array

2	4	6	14	29	65	137	277
3	5	19	57	171	549	1786
9	11	94	483	2549
15	40	269	1996
22	124	1071
23	187
30

A253609 as an upper right triangle

2	4	6	14	29	65	137	277
	3	5	19	57	171	549	1786
		9	11	94	483	2549
			15	40	269	1996
				22	124	1071
					23	187
						30