80256

Appears in sequences

• McKay-Thompson series of class 24F for Monster.at n=35A058576
• Successive maxima in sequence A007365.at n=23A065933
• Number of subsets of integers 1 through n (including the empty set) containing no pair of integers that share a common factor.at n=34A084422
• Number of maximal sum-free subsets of {1,2,...,n}.at n=41A121269
• a(n) = 12*A002605(n).at n=10A172011
• Numbers with prime factorization pqrs^7.at n=21A190473
• Euler transform is 1 / (q j(q)) where j is j-function (A000521).at n=1A192731
• A weight 1/2 meromorphic modular form associated with the j-function.at n=7A192732
• Numbers k such that k = Product (p_j^e_j) = Product (p_j*(e_j + 1)).at n=25A304410
• Expansion of e.g.f. 1/(1 + LambertW(-x * exp(x^2))).at n=6A362604