Composite numbers m that divide A123855(m-1) = Sum_{i=1..m-1} Sum_{j=1..m-1} prime(i)^j.

Terms

a(0) =4a(1) =8a(2) =16a(3) =32a(4) =38a(5) =64a(6) =128a(7) =205a(8) =256a(9) =316a(10) =512a(11) =736a(12) =1024a(13) =2048a(14) =3776a(15) =4096a(16) =4916a(17) =5888a(18) =7736a(19) =8192a(20) =11138a(21) =16384a(22) =22287a(23) =23308a(24) =23924a(25) =32768a(26) =39538a(27) =62336a(28) =65536a(29) =71936