The zero-free, right-to-left factorial walk encoding for each rooted plane tree encoded by A014486. Sequence A071155 shown with factorial expansion (A007623).

A071157

The zero-free, right-to-left factorial walk encoding for each rooted plane tree encoded by A014486. Sequence A071155 shown with factorial expansion (A007623).

Terms

    a(0) =0a(1) =1a(2) =11a(3) =21a(4) =111a(5) =211a(6) =121a(7) =221a(8) =321a(9) =1111a(10) =2111a(11) =1211a(12) =2211a(13) =3211a(14) =1121a(15) =2121a(16) =1221a(17) =2221a(18) =3221a(19) =1321a(20) =2321a(21) =3321a(22) =4321a(23) =11111a(24) =21111a(25) =12111a(26) =22111a(27) =32111a(28) =11211a(29) =21211

External references