Number of subsets of the first n twin primes (A001097) whose sum is a twin prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =8a(5) =13a(6) =22a(7) =37a(8) =64a(9) =119a(10) =227a(11) =450a(12) =884a(13) =1673a(14) =3019a(15) =5113a(16) =8877a(17) =16119a(18) =30250a(19) =57282a(20) =109178a(21) =210547a(22) =412261a(23) =819165a(24) =1641582a(25) =3298602a(26) =6600608a(27) =13150469a(28) =26176431a(29) =52289653