Numbers k such that k*d(x) = x has no solution for x, where d (A000005) is the number of divisors; sequence gives impossible x/d(x) quotients in order of magnitude.
A036763
Numbers k such that k*d(x) = x has no solution for x, where d (A000005) is the number of divisors; sequence gives impossible x/d(x) quotients in order of magnitude.
Terms
- a(0) =18a(1) =27a(2) =30a(3) =45a(4) =63a(5) =64a(6) =72a(7) =99a(8) =105a(9) =112a(10) =117a(11) =144a(12) =153a(13) =160a(14) =162a(15) =165a(16) =171a(17) =195a(18) =207a(19) =225a(20) =243a(21) =252a(22) =255a(23) =261a(24) =279a(25) =285a(26) =288a(27) =294a(28) =320a(29) =333
External references
- oeis: A036763