31474

Appears in sequences

• Fermionic string states.at n=18A005309
• Numbers k such that the continued fraction for sqrt(k) has period 83.at n=28A020422
• Numbers k such that k^2 + 3*k + 1 is a palindrome.at n=26A028348
• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={2}.at n=12A079995
• Number of (n+1) X 4 0..1 arrays with the number of rightwards and downwards edge increases in each 2 X 2 subblock equal to the number in all its horizontal and vertical neighbors.at n=25A206262
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 443", based on the 5-celled von Neumann neighborhood.at n=33A272227
• Euler transform of the Bell numbers (A000110).at n=9A290351
• a(n) = floor(b(n)), where b(1) = 1 and b(n) = b(n-1) + Sum_{k=1..n-1} b(k)/(n-1).at n=42A376995
• Consecutive states of the linear congruential pseudo-random number generator (421*s + 17117) mod 81000 when started at s=1.at n=9A385338