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Search: id:A026623
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A026623 a(n) = T(n,0) + T(n,1) + ... + T(n,[ n/2 ]), T given by A026615. +0
1
1, 1, 4, 6, 18, 27, 72, 111, 283, 447, 1112, 1791, 4381, 7167, 17305, 28671, 68497, 114687, 271560, 458751, 1077949, 1835007, 4283069, 7340031, 17031503, 29360127, 67768777, 117440511, 269797323, 469762047, 1074583315, 1879048191 (list; graph; listen)
OFFSET

0,3

CROSSREFS

Sequence in context: A109310 A120391 A064217 this_sequence A026689 A138276 A088810

Adjacent sequences: A026620 A026621 A026622 this_sequence A026624 A026625 A026626

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified July 19 08:04 EDT 2008. Contains 142098 sequences.


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