23295

Appears in sequences

• Number of primitive (aperiodic) reversible strings with n beads using a maximum of six different colors.at n=5A056317
• Number of rounded n-celled polyominoes.at n=7A056840
• Ulam's spiral (SSW spoke).at n=38A143838
• Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=1A254015
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=7A254020
• Number of (2+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=2A254021
• Number of partitions of (4, n) into a sum of distinct pairs.at n=25A268347
• Lexicographically first sequence of positive integers such that all disjoint equivalent sets of K terms have distinct sums for 1 <= K <= 4.at n=18A349777