41452

Appears in sequences

• Number of subsets of { 1, ..., n } containing an A.P. of length 8.at n=20A018793
• a(n) = prime(prime(prime(prime(A028815(n) - 1) - 1) - 1) - 1) - 1.at n=10A141132
• a(n) = prime(prime(prime(prime(n) - 1) - 1) - 1) - 1, where prime(n) is the n-th prime.at n=28A141217
• Number of primes between exponents of successive Mersenne primes.at n=30A157890
• Numbers n, not divisible by 3, 5, 7 or 11, such that A000203(n)-n-1 and 2*n+1-A000203(n) are prime numbers.at n=15A180268
• Number of partitions p of n such that max(p) - (number of parts of p) is a part of p.at n=50A238544