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 A257125 Initial members of prime 9-tuplets (or nonuplets). 27
 7, 11, 13, 17, 1277, 88789, 113143, 113147, 855709, 74266249, 182403491, 226449521, 252277007, 408936947, 521481197, 626927443, 910935911, 964669609, 1042090781, 1116452627, 1209950867, 1422475909, 1459270271, 1645175087, 2117861719, 2335215973, 2558211559, 2843348351, 2873599429, 2966003057, 3447123283, 3947480417 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Primes prime(m) such that prime(m+8) = prime(m) + 30. - Zak Seidov, Jul 06 2015 LINKS Zak Seidov, Table of n, a(n) for n = 1..651 (Essentially original b-file by Tim Johannes Ohrtmann, just added a(1)=7 and corrected EndOfFile) Tony Forbes k-tuplets MATHEMATICA {p, q, r, s, t, u, v, w, x} = Prime@ Range@ 9; lst = {}; While[p < 1000000001, If[p + 30 == x, AppendTo[lst, p]; Print@ p]; {p, q, r, s, t, u, v, w, x} = {q, r, s, t, u, v, w, x, NextPrime@ x}]; lst (* Robert G. Wilson v, Jul 06 2015 *) PROG (PARI) main(size)=v=vector(size); i=0; m=1; while(i

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Last modified June 17 05:54 EDT 2021. Contains 345080 sequences. (Running on oeis4.)