Numbers n such that sigma(n) is a Fibonacci number.

Terms

a(0) =1a(1) =2a(2) =7a(3) =9a(4) =66a(5) =70a(6) =94a(7) =115a(8) =119a(9) =2479a(10) =18084a(11) =19180a(12) =19290a(13) =22060a(14) =23156a(15) =23178a(16) =24934a(17) =24956a(18) =25756a(19) =26715a(20) =27034a(21) =28678a(22) =28965a(23) =29578a(24) =30094a(25) =32253a(26) =32793a(27) =34113a(28) =35365a(29) =38635