Number of compositions of n into exactly n nonnegative parts such that all positive parts are odd.

A348476

Number of compositions of n into exactly n nonnegative parts such that all positive parts are odd.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =4a(4) =13a(5) =36a(6) =106a(7) =323a(8) =981a(9) =2992a(10) =9196a(11) =28392a(12) =87946a(13) =273287a(14) =851579a(15) =2659764a(16) =8324357a(17) =26100560a(18) =81969496a(19) =257800532a(20) =811862268a(21) =2559731360a(22) =8079294664a(23) =25525787344a(24) =80719066698a(25) =255466082911a(26) =809138591431

External references