Number of solutions to c(1)*prime(2) + ... + c(n)*prime(n+1) = 2, where c(i) = +-1 for i > 1, c(1) = 1.
A022899
Number of solutions to c(1)*prime(2) + ... + c(n)*prime(n+1) = 2, where c(i) = +-1 for i > 1, c(1) = 1.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =0a(5) =0a(6) =0a(7) =4a(8) =0a(9) =9a(10) =0a(11) =14a(12) =0a(13) =75a(14) =0a(15) =155a(16) =0a(17) =724a(18) =0a(19) =2376a(20) =0a(21) =6900a(22) =0a(23) =26937a(24) =0a(25) =92823a(26) =0a(27) =326942a(28) =0a(29) =1156399
External references
- oeis: A022899