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”).

A246258 as a triangular array

1
23
574
66689
9170171510
5519794201811
21155259186241912
4684220364187262213
136218487238377199412814
16541981414189467413237452916
141930552378445309495479262543223

A246258 as a square array

1256691552146136216541419
376701971558418419813055
481794259220874142378
91520186364238189445
101824187377467309
111926199413495
122241237479
132845262
142954
1632
23
1256691552146136216541419
376701971558418419813055
481794259220874142378
91520186364238189445
101824187377467309
111926199413495
122241237479
132845262
142954
1632
23