524252

Appears in sequences

• Let r(n) be the real positive root of Sum_{k=1..n} x^k = 1, then a(n) = round(1/(r(n) - 1/2)).at n=16A079460
• Row sums of triangle A132731.at n=18A132732
• Row sums of triangle A132823.at n=19A132824
• Double, add 0, double, add 1, double, add 2, double, add 3, etc.at n=35A147678
• a(n) is the minimum integer k such that the smallest prime factor of the n-th Fermat number exceeds 2^(2^n - k).at n=19A358684