Number of different strings of length n+5 obtained from "123...n" by iteratively duplicating any substring.

A137740

Number of different strings of length n+5 obtained from "123...n" by iteratively duplicating any substring.

Terms

    a(0) =1a(1) =32a(2) =138a(3) =348a(4) =700a(5) =1246a(6) =2050a(7) =3188a(8) =4749a(9) =6836a(10) =9567a(11) =13076a(12) =17514a(13) =23050a(14) =29872a(15) =38188a(16) =48227a(17) =60240a(18) =74501a(19) =91308a(20) =110984a(21) =133878a(22) =160366a(23) =190852a(24) =225769a(25) =265580a(26) =310779a(27) =361892a(28) =419478a(29) =484130

External references