A264751 - OEIS

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A264751 as a triangular array

											1
										1		2
									1		5		3
								1		9		11		4
							1		14		26		19		5
						1		20		50		55		29		6
					1		27		85		125		99		41		7
				1		35		133		245		259		161		55		8
			1		44		196		434		574		476		244		71		9
		1		54		276		714		1134		1176		804		351		89		10
	1		65		375		1110		2058		2562		2190		1275		485		109		11

A264751 as a square array

1	1	1	1	1	1	1	1	1	1	1
2	5	9	14	20	27	35	44	54	65
3	11	26	50	85	133	196	276	375
4	19	55	125	245	434	714	1110
5	29	99	259	574	1134	2058
6	41	161	476	1176	2562
7	55	244	804	2190
8	71	351	1275
9	89	485
10	109
11

A264751 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1
	2	5	9	14	20	27	35	44	54	65
		3	11	26	50	85	133	196	276	375
			4	19	55	125	245	434	714	1110
				5	29	99	259	574	1134	2058
					6	41	161	476	1176	2562
						7	55	244	804	2190
							8	71	351	1275
								9	89	485
									10	109
										11