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A049749 a(n)=Sum{((-1)^i)*T(i,2n-i): i=0,1,...,2n}, array T as in A049747. 0
0, 3, 9, 19, 33, 53, 59, 101, 109, 141, 211, 235, 275, 315, 353, 435, 511, 543 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..17.

CROSSREFS

Sequence in context: A226184 A066506 A058331 * A147055 A146638 A147135

Adjacent sequences:  A049746 A049747 A049748 * A049750 A049751 A049752

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 4 19:20 EST 2016. Contains 278755 sequences.