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”).

A262705 as a triangular array

1
01
0141
036781
0249782521
00432087306201
0084601038204689012901
007560581700115934018543023941
002520176736013387570831488059547640881
00030870008580600017042949044341584164278865521

A262705 as a square array

1000000000
114362400000
17897843208460756025200
1252873010382058170017673603087000
16204689011593401338757085806000
112901854308314880170429490
1239459547644341584
140881642788
16552
1
1000000000
114362400000
17897843208460756025200
1252873010382058170017673603087000
16204689011593401338757085806000
112901854308314880170429490
1239459547644341584
140881642788
16552
1