156473

Appears in sequences

• Base 10 integers n such that n base 7 is a substring of n base 3.at n=20A164700
• Number of nX5 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically.at n=7A207266
• Number of ways to reciprocally link elements of a 4 X n array either to themselves or to exactly two horizontal and antidiagonal neighbors, without consecutive collinear links.at n=12A220709