30835

Appears in sequences

• Numbers k such that 207*2^k + 1 is prime.at n=46A032480
• Fifth diagonal of triangle A064094.at n=18A064096
• Triangle T, read by rows, equal to the matrix inverse of the triangle defined by [T^-1](n,k) = (n-k)!*A008278(n+1,k+1), for n>=k>=0, where A008278 is a triangle of Stirling numbers of 2nd kind.at n=23A106340
• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1001-1111 pattern in any orientation.at n=17A146622
• Condensed deep factorization of n, A300562(n) written in decimal: floor of odd part of A300561(n) divided by 2.at n=35A300563
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Sum_{j=0..n} k^j * binomial(n,j)^k.at n=48A336187