login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A090217 as a triangular array

1
1201
144008401
172800061920033601
2073600004475520009086400100801
248832000003224448000002334528000076824000252001
298598400000023218513920000059152550400000539602560000457848000

A090217 as a square array

1120144001728000207360000248832000002985984000000
1840619200447552000322444800000232185139200000
1336090864002334528000059152550400000
11008076824000539602560000
125200457848000
1
1120144001728000207360000248832000002985984000000
1840619200447552000322444800000232185139200000
1336090864002334528000059152550400000
11008076824000539602560000
125200457848000
1