53230

Appears in sequences

• Numbers k such that 5*2^k - 1 is prime.at n=35A001770
• Define the sequence T(a(0),a(1)) by a(n+2) is the greatest integer such that a(n+2)/a(n+1) < a(n+1)/a(n) for n >= 0. This is T(6,37).at n=5A022035
• [ exp(5/18)*n! ].at n=7A030882