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A192070 (A192251)/2. 2
0, 1, 4, 24, 129, 759, 4455, 26763, 161898, 988438, 6069228, 37460952, 232160184, 1443830084, 9005809184, 56316652784, 352949825249, 2216334391919, 13941409199519, 87830683173419, 554096566907069, 3499981913717189, 22132830286939649 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
LINKS
MATHEMATICA
(See A192250.)
CROSSREFS
Sequence in context: A289715 A174443 A180222 * A048180 A057391 A071079
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jun 27 2011
STATUS
approved

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Last modified August 19 01:22 EDT 2024. Contains 375284 sequences. (Running on oeis4.)