A260613 - OEIS

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A260613 as a triangular array

									1
								1		2
							1		5		6
						1		10		31		30
					1		17		101		247		210
				1		28		288		1358		2927		2310
			1		41		652		5102		20581		40361		30030
		1		58		1349		16186		107315		390238		716167		510510
	1		77		2451		41817		414849		2429223		8130689		14117683		9699690

A260613 as a square array

1	1	1	1	1	1	1	1	1
2	5	10	17	28	41	58	77
6	31	101	288	652	1349	2451
30	247	1358	5102	16186	41817
210	2927	20581	107315	414849
2310	40361	390238	2429223
30030	716167	8130689
510510	14117683
9699690

A260613 as an upper right triangle

1	1	1	1	1	1	1	1	1
	2	5	10	17	28	41	58	77
		6	31	101	288	652	1349	2451
			30	247	1358	5102	16186	41817
				210	2927	20581	107315	414849
					2310	40361	390238	2429223
						30030	716167	8130689
							510510	14117683
								9699690