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”).

A060921 as a triangular array

1
32
8103
2138224
55130111405
144420474256656
377130818361324511987
98739706666602031309241408
258411822231092508816435658815541929

A060921 as a square array

13821551443779872584
210381304201308397011822
3221114741836666623109
4402561324602025088
565511313016435
6989246588
71401554
8192
9
13821551443779872584
210381304201308397011822
3221114741836666623109
4402561324602025088
565511313016435
6989246588
71401554
8192
9