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A083932 A014486-encoding of the Catalan mountain ranges with only even-length slopes allowed. 3
0, 12, 204, 240, 3276, 3312, 3852, 3888, 4032, 52428, 52464, 53004, 53040, 53184, 61644, 61680, 62220, 62256, 62400, 64524, 64560, 64704, 65280, 838860, 838896, 839436, 839472, 839616, 848076, 848112, 848652, 848688, 848832, 850956, 850992 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Subset of totally balanced binary strings (A014486) with only even runs of either bit 0 or 1 occurring. See A083933.

LINKS

Table of n, a(n) for n=0..34.

Index entries for encodings of plane rooted trees

FORMULA

a(n) = A008585(A083931(n)), i.e. 3*A083931(n).

CROSSREFS

Same sequence in binary: A083933, indices to A014486: A083934.

Permutation of A080316 from which this differs first time at the sixth term, with a(6)=3852, while A080316(6)=4032.

Sequence in context: A327073 A133242 A141836 * A080316 A108020 A097193

Adjacent sequences:  A083929 A083930 A083931 * A083933 A083934 A083935

KEYWORD

nonn

AUTHOR

Antti Karttunen May 13 2003

STATUS

approved

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Last modified March 31 16:23 EDT 2020. Contains 333151 sequences. (Running on oeis4.)