44541

Appears in sequences

• Nonpalindromic numbers k such that k is not divisible by 10 and k*R(k) is a square, where R(k) is the reversal of k (A004086).at n=34A062917
• Numbers k such that all the following properties hold: (i) k*reverse(k) is a square; (ii) k != reverse(k); (iii) k and reverse(k) are not both squares; and (iv) k and reverse(k) have the same number of digits.at n=21A082994
• A000041(n) - A000203(n).at n=40A086738
• Smallest number m such that A118164(m) = n.at n=18A118165
• Square of the (3,1)-entry of the 3 X 3 matrix M^n, where M = [1,0,0; 1,1,0; 1,i,1].at n=20A125641
• Non-palindromic numbers n such that the square root of n multiplied by the reversal of n is a palindrome.at n=12A258382
• E.g.f. A(x) satisfies: [x^n] A(x)^(3*n) = (n + 2) * [x^(n-1)] A(x)^(3*n) for n>=1.at n=5A300986
• Triangle read by rows: T(n, k) = qStirling2(n, k, q) for q = 3, with 0 <= k <= n.at n=23A333143
• Expansion of e.g.f. 1 / (-5 + Sum_{k=1..6} exp(-k*x)).at n=3A366301
• E.g.f. A(x) satisfies A(x) = exp(x*B(x*A(x))^2), where B(x) = 1 + x*B(x)^3 is the g.f. of A001764.at n=5A382058