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”).

A100851 as a triangular array

1
26
41236
82472216
16481444321296
329628886425927776
64192576172851841555246656
12838411523456103683110493312279936
2567682304691220736622081866245598721679616
5121536460813824414721244163732481119744335923210077696

A100851 as a square array

1248163264128256512
6122448961923847681536
3672144288576115223044608
21643286417283456691213824
129625925184103682073641472
7776155523110462208124416
4665693312186624373248
2799365598721119744
16796163359232
10077696
1248163264128256512
6122448961923847681536
3672144288576115223044608
21643286417283456691213824
129625925184103682073641472
7776155523110462208124416
4665693312186624373248
2799365598721119744
16796163359232
10077696