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A188981 as a triangular array

0
11
292
41161164
690072649006
137836295264295264783613
24718651283827654113236128382767186524
45640513577290185105232634241052326342457729018564051345
84570611325631148992

A188981 as a square array

0124613244584
191169007836718656405135706113
211672642952641283827657729018525631148992
49002952645411323610523263424
678361283827610523263424
1371865577290185
24640513
45

A188981 as an upper right triangle

0124613244584
191169007836718656405135706113
211672642952641283827657729018525631148992
49002952645411323610523263424
678361283827610523263424
1371865577290185
24640513
45

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Last modified October 26 20:15 EDT 2021. Contains 348269 sequences. (Running on oeis4.)