24059

Appears in sequences

• Numbers k that divide 5^k + 2^k.at n=7A045578
• Numbers k that divide 10^k + 4^k.at n=28A045594
• Least number beginning with n such that every concatenation is a prime.at n=23A090506
• Number of 4 X 4 symmetric magic squares with line sum 2n.at n=13A093198
• Indices n of primes p(n), p(n+3) such that p(n)+1 and p(n+3)+1 have the same largest prime factor.at n=14A105406
• G.f. satisfies: A(x) = A(2*x^2 + x^3)/(1-x).at n=13A251582
• Number of 4Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=13A302166