login

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

A223041 as a triangular array

1
12
285
119810515
3412653780158551
1311735622943725594323107187
43824158385806194296472110904199353631715
215033955325456077337361951209820667094075199080053386462795
767648048796

A223041 as a square array

112113413143821507676
2898126517356241583339553248048796
510537802294378580619545607733
151585255943429647217361951209
5123107109041998206670940
187353631751990800
7155338646
2795
112113413143821507676
2898126517356241583339553248048796
510537802294378580619545607733
151585255943429647217361951209
5123107109041998206670940
187353631751990800
7155338646
2795