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”).

A127054 as a triangular array

1
11
121
1431
110941
134331551
1154153652361
18748733391193271
15914591321037191864281
1462344623315171503912302675491
14091144091131247554031992581891380

A127054 as a square array

11111111111
1241034154874591446234409114
13933153873591346233409113
141565339210315171124755
1523119719503940319
163218612309258
17422671891
1854380
19
1
11111111111
1241034154874591446234409114
13933153873591346233409113
141565339210315171124755
1523119719503940319
163218612309258
17422671891
1854380
19
1