684114

Appears in sequences

• Expansion of (1+x^3*C^4)*C^3, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.at n=11A071740
• Number of steps J. H. Conway's Fractran program needs to calculate the n-th prime.at n=21A267572
• Number of certain noncrossing set partitions.at n=11A280891
• Lexicographically earliest sequence of distinct positive integers with no finite subset summing to a Catalan number (A000108).at n=33A353983