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A047038 T(n,n+3), array T as in A047030. 0
1, 4, 15, 56, 209, 784, 2958, 11220, 42753, 163548, 627770, 2416804, 9328384, 36087780, 139890764, 543246696, 2113015731, 8230687548, 32102370550, 125358442460, 490049744789, 1917595810240, 7510507532319, 29440544167696 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

CROSSREFS

Sequence in context: A195503 A010905 A026030 * A158500 A001791 A047128

Adjacent sequences:  A047035 A047036 A047037 * A047039 A047040 A047041

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 18 03:43 EST 2018. Contains 299298 sequences. (Running on oeis4.)