Number of solutions to c(1)*prime(2) + ... + c(2n-1)*prime(2n) = -1, where c(i) = +-1 for i > 1, c(1) = 1.

A261062

Number of solutions to c(1)*prime(2) + ... + c(2n-1)*prime(2n) = -1, where c(i) = +-1 for i > 1, c(1) = 1.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =0a(4) =6a(5) =8a(6) =30a(7) =121a(8) =385a(9) =1102a(10) =4207a(11) =13263a(12) =48904a(13) =164298a(14) =610450a(15) =2108897a(16) =7592564a(17) =27444148a(18) =100851443a(19) =365507140a(20) =1344593522a(21) =4960584613a(22) =18435632285a(23) =68320148701a(24) =254166868115a(25) =951593812462

External references