Number of compositions of n into twin primes (i.e., primes that are members of a twin prime pair, like 3, 5, 7, 11, 13, but not 2 or 23).
A077608
Number of compositions of n into twin primes (i.e., primes that are members of a twin prime pair, like 3, 5, 7, 11, 13, but not 2 or 23).
Terms
- a(0) =1a(1) =0a(2) =0a(3) =1a(4) =0a(5) =1a(6) =1a(7) =1a(8) =2a(9) =1a(10) =3a(11) =4a(12) =3a(13) =7a(14) =7a(15) =8a(16) =14a(17) =15a(18) =21a(19) =28a(20) =33a(21) =47a(22) =58a(23) =75a(24) =103a(25) =125a(26) =167a(27) =220a(28) =275a(29) =370
External references
- oeis: A077608