333904

Appears in sequences

• Result of using the perfect squares as coefficients in an infinite polynomial series in x and then expressing this series as (1+a(1)x)(1+a(2)x^2)(1+a(3)x^3)...at n=24A147559
• Product_{k>=1} 1/(1 - a(k)*x^k) = 1 + Sum_{k>=1} k^2*x^k.at n=24A316086
• a(n) = Sum_{i=1..n} 2^phi(i), where phi=A000010.at n=19A385147