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”).

A266291 as a triangular array

1
10
101
1022
10599
10129143544
103312334072720375265
10971882749473992087457416241641854
10278323444697988671300033588042327483571817033857514833
108215826961108770442228

A266291 as a square array

1111111111
000000000
125123397278821
29911233188273234445826961
9435407274947399697988671108770442228
44203752087457430003358804
265162416423274835718
1854170338575
14833
1111111111
000000000
125123397278821
29911233188273234445826961
9435407274947399697988671108770442228
44203752087457430003358804
265162416423274835718
1854170338575
14833