a(n) is the numerator of Sum_{primes p < n} 1/(n-p).

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =5a(5) =19a(6) =19a(7) =17a(8) =89a(9) =673a(10) =47a(11) =979a(12) =1297a(13) =4883a(14) =1771a(15) =79613a(16) =31a(17) =393959a(18) =2033a(19) =85639a(20) =116551a(21) =616181a(22) =4111a(23) =16637083a(24) =727403a(25) =13117673a(26) =72631a(27) =122771983a(28) =194803a(29) =31691158757