42289

Appears in sequences

• Expansion of chi(x) / phi(x^2) in powers of x where phi(), chi() are Ramanujan theta functions.at n=48A085261
• Sum of largest parts (counted with multiplicity) of all partitions of n into odd parts.at n=45A092310
• a(n) = floor(M(g(n-1)+1, ..., g(n))), where M = harmonic mean and g(n) = n^3 + n^2 + n + 1.at n=34A227015
• Smaller of two consecutive semiprimes which are anagrams of each other.at n=18A228135
• Total number of congruence subgroups of PSL(2,Z) of genus n.at n=24A258691