124659

Appears in sequences

• Numbers n such that n divides 2^n + 1.at n=26A006521
• Numbers k that divide s(k), where s(1)=1, s(j)=19*s(j-1)+j.at n=39A014869
• Numbers k such that k | 8^k + 1.at n=33A015955
• Pseudo-powers to base 3: numbers k that are not powers of 3 such that k divides 2^k + 1.at n=15A016057
• Odd numbers divisible by exactly 9 primes (counted with multiplicity).at n=11A046322
• Numbers n such that n divides 2^n^2 + 1.at n=36A093546
• Numbers k that divide 2^(k^3) + 1.at n=37A093665
• Smallest number ending with the digits of n that has exactly n prime factors (counted with multiplicity).at n=8A109687
• Let q(p) be the smallest prime greater than the prime p. A positive integer n is included in this sequence if n+1 is divisible by q(p) for each prime p dividing n.at n=34A163619
• a(n) = 19*3^n.at n=8A176413
• a(n) = n^8*(5*n+4).at n=3A229151
• Number of ascending runs in {1,...,3}^n.at n=9A229277
• Lexicographically least strictly increasing sequence such that, for any n>0, Sum_{k=1..n} a(k) can be computed without carries in base 9 (the numbers are written in base 10).at n=22A280731
• Terms k of A006521 such that 2*k is a term of A124240.at n=25A289257
• Fixed points of A300956.at n=18A300958