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A073191
Number of separate orbits/cycles to which the Catalan bijections A072796/A072797 partition each A000108(n) structures encoded in the range [A014137(n-1)..A014138(n-1)] of the sequence A014486/A063171.
8
1, 1, 2, 4, 11, 31, 96, 305, 1007, 3389, 11636, 40498, 142714, 507870, 1823040, 6591885, 23989419, 87795473, 322922652, 1193058230, 4425547638, 16475756738, 61539293424, 230548633954, 866095934598, 3261868457698, 12313423931624
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OFFSET
0,3
LINKS
Table of n, a(n) for n=0..26.
FORMULA
a(n) = (A000108(n)+A073190(n))/2.
CROSSREFS
Occurs for first time in A073201 as row 1.
Sequence in context: A247333 A118974 A119020 * A173139 A148164 A364594
Adjacent sequences: A073188 A073189 A073190 * A073192 A073193 A073194
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jun 25 2002
STATUS
approved

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Last modified October 5 09:22 EDT 2024. Contains 376531 sequences.
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