41370

Appears in sequences

• a(n+1) = a(n)-th composite number, with a(0) = 1.at n=45A006508
• Number of unlabeled identity connected unit interval graphs with n nodes.at n=15A007122
• a(n) = n^4 + n^3 + n^2 + n.at n=14A027445
• Numbers whose set of base 14 digits is {0,1}.at n=30A033050
• Numbers having four 6's in base 9.at n=8A043480
• Numbers k such that 9^k == -1 (mod k-1).at n=8A055692
• Sum of remainders when n-th Fibonacci number is divided by all smaller Fibonacci numbers > 1.at n=23A072523
• Gaps between first elements of prime quintuples of the form (p, p+2, p+6, p+12, p+14). The quintuples are abutting: twin/cousin/sexy/twin pairs.at n=19A342502
• a(n) = Sum_{1 <= x_1, x_2 <= n} sigma( ( n/gcd(x_1, x_2, n) )^2 ).at n=11A373132