login

A205917 as a triangular array

81
369369
176417911764
8655983198318655
4315560108879186010843155
218034387267875760875760387267218034
11126642554848898692914150391898692925548481112664
57222361705116693488811231526056

A205917 as a square array

81369176486554315521803411126645722236
3691791983160108387267255484817051166
1764983187918875760898692993488811
86556010887576014150391231526056
431553872678986929
2180342554848
1112664
81369176486554315521803411126645722236
3691791983160108387267255484817051166
1764983187918875760898692993488811
86556010887576014150391231526056
431553872678986929
2180342554848
1112664