Numbers k such that the k-th composition in standard order is an alternating permutation of {1..k} for some k.

A349051

Numbers k such that the k-th composition in standard order is an alternating permutation of {1..k} for some k.

Terms

    a(0) =0a(1) =1a(2) =5a(3) =6a(4) =38a(5) =41a(6) =44a(7) =50a(8) =553a(9) =562a(10) =582a(11) =593a(12) =610a(13) =652a(14) =664a(15) =708a(16) =788a(17) =808a(18) =16966a(19) =17036a(20) =17048a(21) =17172a(22) =17192a(23) =17449a(24) =17458a(25) =17542a(26) =17676a(27) =17712a(28) =17940a(29) =18000

External references