43755

Appears in sequences

• Numbers k such that gcd(k! + 1, k^k + 1) is neither 1 nor 2k+1.at n=3A116894
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 307", based on the 5-celled von Neumann neighborhood.at n=39A271166
• Non-Brauer numbers.at n=26A349044
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n-3*k-1,k) * a(k).at n=34A352043