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A181274 as a triangular array

2
40
830
161100
3248900
6418879000
12876876658000
25630566060162913000
51212288499282892419913000
1024490883950245070528787314200000
204819660831707848211776

A181274 as a square array

24816326412825651210242048
03114818876830561228849088196608
009797666060499283950243170784
000581629289245070528211776
00013199187873
00031420
0000
000
00
0

A181274 as an upper right triangle

24816326412825651210242048
03114818876830561228849088196608
009797666060499283950243170784
000581629289245070528211776
00013199187873
00031420
0000
000
00
0

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Last modified April 18 09:35 EDT 2024. Contains 371779 sequences. (Running on oeis4.)