31833

Appears in sequences

• Numbers n such that 8*10^n + 4*R_n + 3 is prime, where R_n = 11...1 is the repunit (A002275) of length n.at n=8A103081
• n+prime(n)+prime(prime(n)) is a triangular number, where prime(n) is the n-th prime.at n=22A116010
• Numbers k such that k and k^2 use only the digits 0, 1, 3, 8 and 9.at n=51A136852
• First differences of A140495.at n=40A142716
• 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, 0), (-1, 1, -1), (1, -1, 1), (1, 1, 0)}.at n=9A149205
• Number of partitions of n such that (number parts having multiplicity 1) is a part and (number of 1s) is not a part.at n=45A241508
• Terms of A046337 for which A358777 is zero, where the latter is the Dirichlet inverse of former's characteristic function.at n=45A359607