18532

Appears in sequences

• Powers of fifth root of 18 rounded down.at n=17A018165
• Powers of fifth root of 18 rounded to nearest integer.at n=17A018166
• Numbers having four 4's in base 8.at n=9A043440
• Numbers k such that 30*R_k + 1 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=23A055520
• Difference between (smallest square strictly greater than 2^n) and 2^n.at n=33A056008
• a(1) = 1, a(2) = 2; for n >= 2, a(n+1) = a(n) + sum of the unique prime factors of a(n).at n=23A096460
• Number of mixed arrangements of n pseudolines and 2 double pseudolines in the projective plane.at n=3A191960
• Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^3<x^3+y^3.at n=31A211801
• Difference between 2^(2*n-1) and the next larger square.at n=16A238454
• G.f. satisfies A(x) = (1 + x^4) * (1 + x*A(x)^2).at n=10A364330
• Number of integer partitions of n with a unique composite part.at n=46A379302