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A083939 A014486-encoding of binary trees whose left and right subtree are identical. 1
0, 2, 50, 842, 908, 13610, 13868, 14642, 14900, 15416, 218282, 219308, 222386, 223412, 225464, 234698, 235724, 238802, 239828, 241880, 247010, 248036, 250088, 254192, 3494570, 3498668, 3510962, 3515060, 3523256, 3560138, 3564236, 3576530 (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, 42, 52, 385, 414, 477, 506, 555

Index entries for encodings of plane rooted trees

FORMULA

a(n) = A014486(A083938(n))

CROSSREFS

Sequence in context: A007511 A016032 A080299 * A083941 A080263 A221241

Adjacent sequences:  A083936 A083937 A083938 * A083940 A083941 A083942

KEYWORD

nonn

AUTHOR

Antti Karttunen May 13 2003

STATUS

approved

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Last modified July 12 22:46 EDT 2020. Contains 335669 sequences. (Running on oeis4.)