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”).

A125234 as a triangular array

1
71
1881
342691
556035101
811159545111
11219621014056121
14830840635019668131
18945671475654626481141
23564511701470130281034595151
28688018152640277221121155440110161

A125234 as a square array

1718345581112148189235286
182660115196308456645880
19359521040671411701815
1104514035075614702640
1115619654613022772
112682648102112
113813451155
11495440
115110
116
1
1718345581112148189235286
182660115196308456645880
19359521040671411701815
1104514035075614702640
1115619654613022772
112682648102112
113813451155
11495440
115110
116
1