40335

Appears in sequences

• Numbers k such that (k / sum of digits of k) and (k+1 / sum of digits of k+1) are both prime.at n=32A085775
• a(n) = n! + 2n - 1.at n=7A139464
• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 00100-11111-00100 pattern in any orientation.at n=18A147009
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 438", based on the 5-celled von Neumann neighborhood.at n=17A282221