51250

Appears in sequences

• Positive integers n such that n | (2^n + n/2 + 1).at n=13A015945
• Numbers that are the sum of 2 nonzero squares in exactly 5 ways.at n=18A025288
• Numbers that are the sum of 2 distinct nonzero squares in exactly 5 ways.at n=14A025306
• a(n) = 169*n^2 + 140*n + 29.at n=17A156640
• Numbers n such that phi(n)/n = 16/41.at n=17A176598
• Numbers n which appear at least twice in A037278(n), concatenation of their divisors written in base 10.at n=43A248323
• a(n) = (3*n+7)*n^2.at n=25A257042
• Numbers that are the sum of 2 squares in exactly 5 ways.at n=27A294716
• Sums of two distinct odd fourth powers.at n=23A342832
• Sums of two odd fourth powers.at n=29A343588
• Square array T(n,k) read by ascending antidiagonals: T(n,k) = (p - 1)/2*(2*(n - 1)*p^(n - 1) - (2*n - 3)*p^(n - 2)), n>=2, where p is the k-th odd prime.at n=16A391520