37665

Appears in sequences

• Numbers k that divide the (right) concatenation of all numbers <= k written in base 3 (most significant digit on left).at n=31A029448
• Numbers n > 1 such that n^5 - 2 has no prime factor > n.at n=7A083955
• a(1)=1. a(n) = a(n-1) + (largest integer occurring among {a(1),a(2),a(3),...,a(n-1)} that is coprime to n).at n=23A120939
• Numbers k such that 2*k-1, 4*k-1, 6*k-1 and 8*k-1 are primes.at n=23A124487
• Numbers k for which 2*k-1, 4*k-1, 8*k-1 and 16*k-1 are primes.at n=32A124494
• 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, -1), (-1, 0, 1), (-1, 1, 0), (-1, 1, 1), (1, 0, 0)}.at n=10A149082
• Triangle T(n, k) read by rows: T(n, k)= (m*n-m*k+1)*T(n-1, k-1) + k*(m*k-(m-1))*T(n-1, k) where m = 1.at n=33A166960
• Numbers n such that A280864(n) = n.at n=18A280754
• a(n) is the smallest j which satisfies (j^2 + k)/(j + k^2) = n where j,k are integers and j >= k > 0.at n=37A290332