43674

Appears in sequences

• Second diagonal of Gely numbers.at n=16A132796
• Numbers k such that k*(k+1)-1 and k*(k+1)+1 are twin primes and k*(k+3)-1 and k*(k+3)+1 are also twin primes.at n=21A138303
• Number of permutations of length n having exactly one descent such that the first element of the permutation is an odd number.at n=15A257198