Number of compositions of 2*n with n maximal anti-runs.

Terms

a(0) =1a(1) =1a(2) =3a(3) =8a(4) =13a(5) =33a(6) =112a(7) =286a(8) =769a(9) =2288a(10) =6695a(11) =18745a(12) =54654a(13) =160888a(14) =467402a(15) =1362378a(16) =4016517a(17) =11807966a(18) =34708018a(19) =102451390a(20) =302870005a(21) =895207191a(22) =2650590597a(23) =7859253320a(24) =23316653154a(25) =69231883374a(26) =205773157904a(27) =612021943421