Position of first zero in the n-th differences of the primes, or 0 if it does not appear.

Terms

a(0) =0a(1) =0a(2) =2a(3) =7a(4) =69a(5) =13a(6) =47a(7) =58a(8) =9a(9) =43a(10) =3553a(11) =100a(12) =7019a(13) =14082a(14) =68097a(15) =14526a(16) =149677a(17) =2697a(18) =481054a(19) =979719a(20) =631894a(21) =29811a(22) =25340978a(23) =50574254a(24) =7510843a(25) =210829337a(26) =67248861a(27) =224076286a(28) =910615647a(29) =931510269