494384

Appears in sequences

• Number of (n+2)X(7+2) 0..3 arrays with every consecutive three elements in every row and column not having exactly two distinct values, and in every diagonal and antidiagonal having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=30A253024
• Number of length-n binary words having no subwords that are abelian fourth powers.at n=26A305003
• a(n) is the least number that can be represented in exactly n ways as the sum of a prime and its digit reversal.at n=35A344871