81660

Appears in sequences

• Numbers k such that 147*2^k+1 is prime.at n=34A032423
• Numbers n with property that n+41, n^2+41 and n^3+41 are all primes.at n=31A175260
• Number of compositions of n into parts 3, 5 and 9.at n=59A245370
• Number of ways to choose 3 points that form an equilateral triangle from the A000292(n) points in a regular tetrahedral grid of side length n.at n=17A334581