cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A083930 Map from binary trees of size n to the set of corresponding trivalent plane trees (tpt) represented as size 2n+1 general trees.

Original entry on oeis.org

0, 7, 49, 57, 439, 452, 515, 541, 585, 4612, 4631, 4757, 4795, 4865, 5455, 5468, 5744, 5795, 5865, 6268, 6294, 6433, 6688, 53200, 53226, 53448, 53500, 53604, 54935, 54954, 55430, 55501, 55605, 56356, 56394, 56601, 57003, 63294, 63313, 63439
Offset: 0

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Author

Antti Karttunen, May 13 2003

Keywords

Crossrefs

Inverse function: A083929. Positions of A083936 in A014486.

Formula

a(n) = A057548(A057123(n)).