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”).

A344834 as a triangular array

0
00
010
0220
02220
042240
0443440
04444440
044444440
0846446480
08864546880
088844448880
0888856588880

A344834 as a square array

0000000000000
012244448888
02224444888
0223446688
044444448
04444545
0446446
044645
08888
0888
088
08
0
0000000000000
012244448888
02224444888
0223446688
044444448
04444545
0446446
044645
08888
0888
088
08
0