A337977 - OEIS

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A337977 as a triangular array

										1
									1		1
								1		3		2
							1		6		8		5
						1		10		22		26		14
					1		15		50		85		90		42
				1		21		100		225		348		322		132
			1		28		182		525		1050		1442		1176		429
		1		36		308		1120		2730		4928		5992		4356		1430
	1		45		492		2226		6426		14238		22920		24894		16302		4862

A337977 as a square array

1	1	1	1	1	1	1	1	1	1
1	3	6	10	15	21	28	36	45
2	8	22	50	100	182	308	492
5	26	85	225	525	1120	2226
14	90	348	1050	2730	6426
42	322	1442	4928	14238
132	1176	5992	22920
429	4356	24894
1430	16302
4862

A337977 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	1	3	6	10	15	21	28	36	45
		2	8	22	50	100	182	308	492
			5	26	85	225	525	1120	2226
				14	90	348	1050	2730	6426
					42	322	1442	4928	14238
						132	1176	5992	22920
							429	4356	24894
								1430	16302
									4862