129646
domain: N
Appears in sequences
- Sum of the distinct prime factors of 2^n-1.at n=39A152057
- Number of (n+7)X12 0..1 matrices with each 8X8 subblock idempotent.at n=7A224594
- Number of nX4 0..1 arrays with every element unequal to 0, 1 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=23A317769