A268434 - OEIS

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A268434 as a triangular array

									1
								0		1
							0		2		1
						0		10		10		1
					0		100		140		28		1
				0		1700		2900		840		60		1
			0		44200		85800		31460		3300		110		1
		0		1635400		3476200		1501500		203060		10010		182		1
	0		81770000		185874000		90563200		14700400		943800		25480		280		1

A268434 as a square array

1	0	0	0	0	0	0	0	0
1	2	10	100	1700	44200	1635400	81770000
1	10	140	2900	85800	3476200	185874000
1	28	840	31460	1501500	90563200
1	60	3300	203060	14700400
1	110	10010	943800
1	182	25480
1	280
1

A268434 as an upper right triangle

1	0	0	0	0	0	0	0	0
	1	2	10	100	1700	44200	1635400	81770000
		1	10	140	2900	85800	3476200	185874000
			1	28	840	31460	1501500	90563200
				1	60	3300	203060	14700400
					1	110	10010	943800
						1	182	25480
							1	280
								1