login

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

A174856 as a triangular array

1
11
111
0001
11101
100001
1101001
10100001
010010001
1000000001
11110100001
100000000001
1100001000001
10101000000001

A174856 as a square array

11101111011111
1101010101010
101001001001
10010001000
1000100001
100001000
10000010
1000000
100000
10000
1000
100
10
1
11101111011111
1101010101010
101001001001
10010001000
1000100001
100001000
10000010
1000000
100000
10000
1000
100
10
1