91567

Appears in sequences

• a(n) is the smallest number greater than a(n-1) such that in a(0) through a(n) no digit occurs more than once more than any other digit.at n=48A095204
• Product of n-th prime and n-th prime written backwards.at n=30A133019
• Product of n-th Mersenne prime and n-th Mersenne prime written backwards.at n=3A135625
• E.g.f. satisfies: A(x) = exp(x) - exp(x*A(x)) + exp(x*A(x)^2).at n=6A195512
• a(n) is the smallest number greater than a(n-1) such that in a(1) through a(n) no digit occurs more than once more than any other digit, starting with a(1) = 1.at n=48A248651
• Irregular triangle read by rows: T(n,k) is the number of n X n tic-tac-toe positions (up to rotation and reflection) with k tokens (i.e., after k plays) which allow a winning strategy for X (n > 0, 0 <= k <= n^2).at n=27A317573