86486
domain: N
Appears in sequences
- a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 54.at n=2A093254
- Expansion of f(-x, -x^7) / f(-x, -x) in powers of q where f(, ) is Ramanujan's general theta function.at n=38A132212
- Let p = first digit of n, q = number obtained if p is removed from n; let r = last digit of n, s = number obtained if r is removed from n; sequence give n such that p*q = r*s != 0, p! = q, and r! = s.at n=41A245364
- Numbers N such that N = P//Q = R//S, where // is the concatenation function, satisfying the following properties: P and S are m-digit integers, Q and R are k-digit integers, k and m are distinct positive integers, and P*Q = R*S.at n=43A245385
- Numbers in A245385 where P, Q, R, and S are all distinct.at n=18A245386