A110952 - OEIS

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A110952 as a triangular array

											1
										3		3
									6		11		6
								10		26		26		10
							15		50		71		50		15
						21		85		155		155		85		21
					28		133		295		379		295		133		28
				36		196		511		799		799		511		196		36
			45		276		826		1519		1849		1519		826		276		45
		55		375		1266		2674		3829		3829		2674		1266		375		55
	66		495		1860

A110952 as a square array

1	3	6	10	15	21	28	36	45	55	66
3	11	26	50	85	133	196	276	375	495
6	26	71	155	295	511	826	1266	1860
10	50	155	379	799	1519	2674
15	85	295	799	1849	3829
21	133	511	1519	3829
28	196	826	2674
36	276	1266
45	375
55

A110952 as an upper right triangle

1	3	6	10	15	21	28	36	45	55	66
	3	11	26	50	85	133	196	276	375	495
		6	26	71	155	295	511	826	1266	1860
			10	50	155	379	799	1519	2674
				15	85	295	799	1849	3829
					21	133	511	1519	3829
						28	196	826	2674
							36	276	1266
								45	375
									55