Numbers k such that the sum of reciprocals of even divisors of k is an integer.
A224832
Numbers k such that the sum of reciprocals of even divisors of k is an integer.
Terms
- a(0) =12a(1) =56a(2) =992a(3) =16256a(4) =60480a(5) =65520a(6) =4357080a(7) =47139840a(8) =67100672a(9) =91065600a(10) =285981696a(11) =2758909440a(12) =17179738112a(13) =87722956800a(14) =132867440640a(15) =274877382656a(16) =306007080960a(17) =806062473216
External references
- oeis: A224832