login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A100631 as a triangular array

1
11
121
1441
181281
1163232161
1328010480321
164192304304192641
112844883210088324481281
12561024217630723072217610242561
1512230455048832102728832550423045121

A100631 as a square array

11111111111
1248163264128256512
1412328019244810242304
183210430483221765504
11680304100830728832
132192832307210272
16444821768832
112810245504
12562304
1512
1
11111111111
1248163264128256512
1412328019244810242304
183210430483221765504
11680304100830728832
132192832307210272
16444821768832
112810245504
12562304
1512
1