22799

Appears in sequences

• a(n) = prime(n)^2 - 2.at n=35A049001
• a(n) = prime(n)*prime(n+1) + prime(n) + prime(n+1).at n=34A126199
• Number of (n+2) X (1+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=8A259955
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=36A259962
• Expansion of Product_{k>=1} 1/(1 - phi(k)*x^k), where phi = Euler totient function (A000010).at n=21A319111
• Number of sets of primes less than the n-th prime whose sum is the n-th prime.at n=55A334292