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”).

A136225 as a triangular array

1
21
841
492661
4142325481
4529265762992101
613693740590031320140121
996815627435153276226062385198141
18931547122483653031553450066475003904266161
412345688273211787

A136225 as a square array

1284941445296136999681518931547412345688
142623226573740562743512248365273211787
165462990031532763031553
1892132022606450066
110140238547500
1121983904
114266
116
1
1284941445296136999681518931547412345688
142623226573740562743512248365273211787
165462990031532763031553
1892132022606450066
110140238547500
1121983904
114266
116
1