43590

Appears in sequences

• Number of factorizations with 3 levels of parentheses indexed by prime signatures. A050340(A025487).at n=40A050341
• a(n) = prime((n+1)!) - prime(n!).at n=5A075489
• Number of compositions (ordered partitions) of n with designated summands.at n=14A091601
• Number of length n+4 0..5 arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.at n=19A249653
• Least positive integer k such that both k and k*n belong to the set {m>0: m+1, m^2+1 and m^2+prime(m)^2 are all prime}.at n=39A261339
• p-INVERT of the positive integers, where p(S) = (1 - S)^6.at n=6A290921