a(1) = 1, a(2) = 2; thereafter a(n) = smallest number not occurring earlier such that both the sum of three successive terms and the sum of three successive digits are prime numbers.

A330424

a(1) = 1, a(2) = 2; thereafter a(n) = smallest number not occurring earlier such that both the sum of three successive terms and the sum of three successive digits are prime numbers.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =5a(4) =8a(5) =6a(6) =3a(7) =20a(8) =14a(9) =25a(10) =44a(11) =34a(12) =49a(13) =68a(14) =32a(15) =27a(16) =24a(17) =10a(18) =67a(19) =60a(20) =12a(21) =29a(22) =26a(23) =52a(24) =41065a(25) =62a(26) =50a(27) =61a(28) =40a(29) =30

External references