Number of compositions of n with no part divisible by 3 and an even number of parts congruent to 4 or 5 modulo 6.

A325473

Number of compositions of n with no part divisible by 3 and an even number of parts congruent to 4 or 5 modulo 6.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =8a(6) =13a(7) =22a(8) =38a(9) =67a(10) =120a(11) =217a(12) =395a(13) =722a(14) =1323a(15) =2428a(16) =4460a(17) =8197a(18) =15070a(19) =27711a(20) =50961a(21) =93724a(22) =172377a(23) =317042a(24) =583122a(25) =1072519a(26) =1972660a(27) =3628277a(28) =6673431a(29) =12274342

External references