Fibonacci + Goldbach (dual sequence to A216275). a(1)=5, a(2)=7 and for n>=3, a(n) = g(a(n-1) + a(n-2)), where for m>=3, g(2*m) is the maximal prime p < 2*m such that 2*m - p is prime.
A216835
Fibonacci + Goldbach (dual sequence to A216275). a(1)=5, a(2)=7 and for n>=3, a(n) = g(a(n-1) + a(n-2)), where for m>=3, g(2*m) is the maximal prime p < 2*m such that 2*m - p is prime.
Terms
- a(0) =5a(1) =7a(2) =7a(3) =11a(4) =13a(5) =19a(6) =29a(7) =43a(8) =67a(9) =107a(10) =167a(11) =271a(12) =433a(13) =701a(14) =1129a(15) =1823a(16) =2939a(17) =4759a(18) =7691a(19) =12437a(20) =20123a(21) =32537a(22) =52631a(23) =85121a(24) =137723a(25) =222841a(26) =360551a(27) =583351a(28) =943871a(29) =1527203
External references
- oeis: A216835