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A027173
a(n) = A027170(2n, n-1).
0
5, 30, 123, 472, 1790, 6794, 25879, 98952, 379674, 1461248, 5638930, 21811540, 84542016, 328287506, 1276868111, 4973645576, 19398954626, 75753497816, 296142817406, 1158865623236, 4539024407576, 17793358627976, 69805770185498
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..23.
CROSSREFS
Sequence in context: A359975 A047661 A000649 * A286973 A196452 A227267
Adjacent sequences: A027170 A027171 A027172 * A027174 A027175 A027176
KEYWORD
nonn
AUTHOR
Clark Kimberling
STATUS
approved

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Last modified November 7 04:35 EST 2024. Contains 377523 sequences.
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