login

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

A072575 as a triangular array

1
01
021
0021
00221
006221
0008221
00068221
000688221
000241288221
0000301488221
000030361488221
00002436381488221
0000245442381488221

A072575 as a square array

10000000000000
1200000000000
122600000000
122866240000
122881230302424
1228814363654
12288143842
122881438
1228814
12288
1228
122
12
1
10000000000000
1200000000000
122600000000
122866240000
122881230302424
1228814363654
12288143842
122881438
1228814
12288
1228
122
12
1