28604

Appears in sequences

• a(n) is the smallest k > a(n-1) such that k^2 has no digit in common with a(n-1)^2.at n=49A030287
• Numbers k such that k^2 contains only digits {1,6,8}.at n=6A053908
• a(n) is the smallest number k such that A073813(k) = prime(n).at n=40A073814
• a(n) is such that the a(n)-th composite number is (n-th prime)^2.at n=40A120389
• Triangle read by rows: numbers of isomers of unbranched a-4-catapolyoctagons.at n=49A120649
• G.f. satisfies: A(x) = Sum_{n>=0} n! * x^n * A(x)^(n*(n-1)/2).at n=7A219358
• Result of inserting the integers n = 0, 1, 2, ... in this order into an initially empty list, where n is inserted between the pair of consecutive elements with sum equal to n and minimal absolute difference, or at the end of the list if no such pair exists.at n=36A360447