login

A101920 as a triangular array

2
51
1381
3442131
89183102191
233717624205261
610262232751650366341
1597913415473110203716602431
4181306916768464553305207483932531
10946100284279106342867215481

A101920 as a square array

251334892336101597418110946
18421837172622913430691100284
11310262432751547367684279106
11920516501102064553342867
126366371630520215481
1346027483
143932
153
1
251334892336101597418110946
18421837172622913430691100284
11310262432751547367684279106
11920516501102064553342867
126366371630520215481
1346027483
143932
153
1