34780

Appears in sequences

• Numbers which can be expressed as the product of a number and its reversal in at least two different ways.at n=23A066531
• n times the coefficient of x^n in log[1 + sum(k>=0, x^2^k)].at n=52A092462
• n+prime(n)+prime(prime(n)) is a cube, where prime(n) is the n-th prime.at n=0A116016
• Number of n X 5 binary arrays with each 1 adjacent to exactly one 1 vertically and one 1 horizontally.at n=11A183337
• Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=1A254548
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=7A254553
• Number of (2+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=2A254554
• Triangle read by rows: T(n,k) is the number of partitions of a 4-colored set of n objects into exactly k parts with 0 <= k <= n.at n=49A382341