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”).

A152201 as a triangular array

1
23
142
5416
62795
1812829
161461102020
1021125302071
12304030122133655
502781

A152201 as a square array

12156116101250
344281423027
21712611408
698125301
52103012
920202
20713
136
55
12156116101250
344281423027
21712611408
698125301
52103012
920202
20713
136
55