Indices of terms in the sequence 3, 1, 4, 5, 9, 14, 23, ... (A000285 prefixed with 3) which are prime numbers.
A091158
Indices of terms in the sequence 3, 1, 4, 5, 9, 14, 23, ... (A000285 prefixed with 3) which are prime numbers.
Terms
- a(0) =1a(1) =4a(2) =7a(3) =8a(4) =10a(5) =11a(6) =16a(7) =20a(8) =23a(9) =26a(10) =28a(11) =35a(12) =40a(13) =56a(14) =58a(15) =80a(16) =83a(17) =92a(18) =98a(19) =100a(20) =307a(21) =416a(22) =575a(23) =691a(24) =746a(25) =818a(26) =820a(27) =971a(28) =1391a(29) =1487
External references
- oeis: A091158