97680
domain: N
Appears in sequences
- a(n) is least k such that k and 8k are anagrams in base n (written in base 10).at n=34A023100
- a(n) = permanent of an n X n matrix M of zeros and ones defined as follows: if we concatenate the rows of M to form a vector v of length n^2, v_i = 0 if i is prime and v_i = 1, otherwise.at n=7A110950
- Numbers with prime factorization p*q*r*s*t^4 (where p, q, r, s, t are distinct primes).at n=35A190110
- Numbers k such that the k-th triangular number contains only digits {0,4,7}.at n=2A218400
- Number of s in {1,...,n}^n having shortest run with the same value of length 4.at n=12A228630
- Expansion of phi(x^2) * chi(x)^4 in powers of x where phi(), chi() are Ramanujan theta functions.at n=31A260515