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A083941 A014486-encoding of symmetric binary trees. 2
0, 2, 50, 844, 906, 13624, 13876, 14642, 14892, 15402, 218352, 219368, 222436, 223448, 225492, 234722, 235730, 238796, 239800, 241844, 246986, 247986, 250028, 254122, 3494880, 3498960, 3511240, 3515312, 3523496, 3560388, 3564452, 3576728 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..31.

A. Karttunen, Ten initial terms illustrated in positions 0, 1, 6, 43, 51, 389, 416, 477, 504, 551

Index entries for encodings of plane rooted trees

FORMULA

a(n) = A014486(A083940(n))

CROSSREFS

Subsets: A084107, A080263, A080293.

Sequence in context: A016032 A080299 A083939 * A080263 A221241 A246071

Adjacent sequences:  A083938 A083939 A083940 * A083942 A083943 A083944

KEYWORD

nonn

AUTHOR

Antti Karttunen May 13 2003

STATUS

approved

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Last modified July 12 06:48 EDT 2020. Contains 335657 sequences. (Running on oeis4.)