A340108 - OEIS

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A340108 as a triangular array

											1
										1		1
									1		2		2
								1		3		6		0
							1		4		12		0		16
						1		5		20		30		80		60
					1		6		30		84		264		480		456
				1		7		42		168		672		1890		3612		3458
			1		8		56		288		1424		5440		15744		30352		29296
		1		9		72		450		2664		12870		50004		145656		283104		275166
	1		10		90		660		4560		26640		130080		508060		1488960		2909700		2843980

A340108 as a square array

1	1	1	1	1	1	1	1	1	1	1
1	2	3	4	5	6	7	8	9	10
2	6	12	20	30	42	56	72	90
0	0	30	84	168	288	450	660
16	80	264	672	1424	2664	4560
60	480	1890	5440	12870	26640
456	3612	15744	50004	130080
3458	30352	145656	508060
29296	283104	1488960
275166	2909700
2843980

A340108 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1
	1	2	3	4	5	6	7	8	9	10
		2	6	12	20	30	42	56	72	90
			0	0	30	84	168	288	450	660
				16	80	264	672	1424	2664	4560
					60	480	1890	5440	12870	26640
						456	3612	15744	50004	130080
							3458	30352	145656	508060
								29296	283104	1488960
									275166	2909700
										2843980