45994

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 17.at n=23A031605
• Number of partitions of n with equal nonzero number of parts congruent to each of 0 and 4 (mod 5).at n=53A035565
• Numbers k such that k*Sum_{d|k} 1/sigma(d) is an integer.at n=28A069166
• A vector recursion designed around a row sum of A000165: v(n)=if[odd,{1.n,n^2,...,2^n*n!-Sum2^m,{m,0,n/2-1}],2^n*n!-Sum2^m,{m,0,n/2-1}],...n^2.n,1},{1.n,n^2,...,2^n*n!-2Sum2^m,{m,0,n/2-1}],...n^2.n,1}].at n=24A152936
• Numbers m such that, if k is the number of digits of m, then for some r > 1, the sum of the k-th powers of the digits of m^r is equal to m.at n=7A364601