336743

Appears in sequences

• Numbers k that divide s(k), where s(1)=1, s(j)=23*s(j-1)+j.at n=15A014874
• Positive integers k such that k divides 12^k - 1.at n=15A014951
• Numbers k such that k | 10^k + 1.at n=18A015958
• Numbers k that divide 7^k + 4^k.at n=19A045592
• Numbers k that divide 6^k + 5^k.at n=21A045595
• Numbers n such that n | 7^n + 6^n + 5^n + 4^n.at n=33A057244
• Numbers n dividing u(n), where the Lucas sequence is defined u(i) = u(i-1) - 3*u(i-2) with initial conditions u(0)=0, u(1)=1.at n=17A228440
• a(n) = 2^n*n!*[x^n] -sqrt(exp(LambertW(-x)))*(LambertW(-x) + 1).at n=6A321968