90148

Appears in sequences

• Duplicate of A130134.at n=5A033555
• Binomial transform of A101910, where A101910(n) = a(A000120(n-1)) for n>0 with A101910(0) = 1.at n=14A101911
• Terms in A015922 not divisible by 3.at n=13A130133
• Even terms in A015922.at n=5A130134
• G.f.: Sum_{k>=0} q(k)^2 * x^k / Sum_{k>=0} q(k)*x^k, where q(n) is A000009(n).at n=42A304877