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A026685 T(2n-1,n-1), T given by A026681. +0
1
1, 5, 17, 87, 324, 1707, 6595, 35300, 139114, 751901, 3000177, 16322561, 65684626, 359049028, 1453825024, 7975236698, 32444454286, 178473218093, 728737293093, 4017589328269, 16453338330248, 90873261482607, 373067000217563 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A038183 A036756 A012782 this_sequence A089923 A139390 A076516

Adjacent sequences: A026682 A026683 A026684 this_sequence A026686 A026687 A026688

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified August 28 22:44 EDT 2008. Contains 143251 sequences.

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