41568

Appears in sequences

• Number of proper factorizations of p1^n*p2^2, where p1 and p2 are distinct primes.at n=26A031125
• Numbers whose set of base-14 digits is {1,2}.at n=35A032934
• Numbers m such that phi(m) = tau(m)^3.at n=25A068559
• a(n) = 4^n + 6^n + 8^n.at n=5A074566
• Number of n-digit 7-smooth numbers (A002473).at n=27A085630
• Number of 6-element subsets of {1, 2, ..., n} having pairwise coprime elements.at n=28A186982
• P-positions for the subtraction game whose allowed moves are the practical numbers (A005153).at n=40A275432
• The number of non-palindromic Motzkin paths of length n.at n=13A290265
• The second Zagreb index of the Aztec diamond AZ(n) (see the Ramanes et al. reference, Theorem 2.2).at n=24A292345
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n) + 2*n, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences.at n=17A296776
• Number of different periodic multisets that fit within some normal multiset of weight n.at n=18A304648