23629

Properties

Appears in sequences

• a(n) = Sum_{k=0..n-1} T(n,k) * T(n,2n-k), with T given by A027052.at n=8A027074
• Primes that are palindromic in base 12.at n=32A029979
• Primes which are the concatenation of numbers n_1, n_2, n_3, in that order, with n_1 + n_2 = n_3 (leading zeros are forbidden for nonzero n_i).at n=38A067860
• a(n) = (L(n-2)+2*3^n)/5.at n=10A099159
• Numbers which converge to 2592 under repeated application of the powertrain map of A133500.at n=24A135384
• Primes of the form p=floor(T/6), T are triangular numbers.at n=29A171595
• T(n,k) = Number of (n+2) X (k+2) 0..4 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.at n=11A186579
• T(n,k) = Number of (n+2) X (k+2) 0..4 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.at n=13A186579
• Primes of the form 7k^3+4.at n=4A201185
• Lexicographically earliest permutation of the primes such that successive absolute differences yield a permutation of all nonprime numbers.at n=24A203985
• Primes p such that A001175(p) = (p-1)/6.at n=28A308791
• Primes p such that A001177(p) = (p-1)/6.at n=32A308799
• Primes of the form p+q+r where p < q < r = p+6 are consecutive primes.at n=31A309354
• Primes p such that 2*p+q and 2*p+r are prime, where q and r are the next two primes after p.at n=39A340225
• Primes p such that the sum of cubes of the 4 consecutive primes starting with p is twice a prime.at n=26A368637
• Primes which are sums of a prime triple (p, p+4, p+6).at n=13A377406
• Primes p such that the concatenations of p and 123456789 in both orders are prime.at n=43A384174
• Prime numbersat n=2630