27443

Appears in sequences

• Number of mappings from n points to themselves with in-degree <= 2.at n=13A006961
• Interprimes (A024675) which are of the form s*prime, s=13.at n=14A075288
• Numbers k such that 10^k + 109 is prime.at n=11A258933
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 630", based on the 5-celled von Neumann neighborhood.at n=38A269543