31902

Appears in sequences

• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (0, 1, 1), (1, 0, 0), (1, 1, -1)}.at n=8A150283
• Number of permutations of 1..n with displacements restricted to {-4,-3,-1,0,2}.at n=16A189585
• Numbers x such that sigma(x) + sigma(R(x)) = sigma(x + R(x)), where R(x) is the digit reversal of x and sigma(x) is the sum of the divisors of x.at n=26A246487
• a(n) = n*(n^2 + 3*n - 2)/2.at n=39A256857
• Numbers n such that Bernoulli number B_{n} has denominator 3318.at n=24A272383
• a(n) = Sum_{j=0..n} p(n - j, j) where p(n, x) = Sum_{k=0..n} k! * Stirling1(n, k) * x^k.at n=8A372347