Odd numbers k such that A000045(k)/A000005(k) is an integer.

Terms

a(0) =1a(1) =3a(2) =405a(3) =625a(4) =1875a(5) =50625a(6) =354375a(7) =556875a(8) =658125a(9) =860625a(10) =961875a(11) =1164375a(12) =1468125a(13) =1500625a(14) =1569375a(15) =1873125a(16) =2075625a(17) =2176875a(18) =2379375a(19) =2683125a(20) =2986875a(21) =3088125a(22) =3391875a(23) =3594375a(24) =3695625a(25) =3720087a(26) =3999375a(27) =4201875a(28) =4501875a(29) =4505625