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”).

A243759 as a triangular array

0
00
000
0110
00100
000000
0110110
00100100
000000000
0221221220
00211211200
000111111000
011022122

A243759 as a square array

0000000000000
001001002001
01101102201
0000001110
001002112
01102212
0001111
002112
02212
000
00
0
0000000000000
001001002001
01101102201
0000001110
001002112
01102212
0001111
002112
02212
000
00
0