A360202 - OEIS

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A360202 as a triangular array

										1
									3		3
								6		12		6
							10		33		33		10
						15		78		138		78		15
					21		171		533		533		171		21
				28		360		2003		3568		2003		360		28
			36		741		7453		23686		23686		7453		741		36
		45		1506		27643		156614		277606		156614		27643		1506		45
	55		3039		102432		1034875		3234373		3234373		1034875		102432		3039		55

A360202 as a square array

1	3	6	10	15	21	28	36	45	55
3	12	33	78	171	360	741	1506	3039
6	33	138	533	2003	7453	27643	102432
10	78	533	3568	23686	156614	1034875
15	171	2003	23686	277606	3234373
21	360	7453	156614	3234373
28	741	27643	1034875
36	1506	102432
45	3039
55

A360202 as an upper right triangle

1	3	6	10	15	21	28	36	45	55
	3	12	33	78	171	360	741	1506	3039
		6	33	138	533	2003	7453	27643	102432
			10	78	533	3568	23686	156614	1034875
				15	171	2003	23686	277606	3234373
					21	360	7453	156614	3234373
						28	741	27643	1034875
							36	1506	102432
								45	3039
									55