31811
domain: N
Appears in sequences
- Numbers k such that 75*2^k-1 is prime.at n=41A050563
- Triangle read by rows where T(n,k) is the number of factorizations of (n+1)! into k distinct factors.at n=48A157836
- Positive integers of the form (30*m^2+1)/11.at n=19A179339
- a(n) = (1/50)*((15*n^2-20*n+4)*Fibonacci(n) - (5*n^2-6*n)*A000032(n)).at n=17A224227