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A025568 a(n) = T(n,n+2) where T is the array defined in A025564. 3
1, 5, 19, 65, 211, 665, 2058, 6294, 19095, 57607, 173096, 518596, 1550367, 4627455, 13795176, 41088456, 122297643, 363828663, 1081966875, 3216725841, 9561635853, 28418162003, 84455354206, 250982289650, 745860104145, 2216567725281 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..26.

CROSSREFS

First differences are pairwise sums of A025181.

Pairwise sums of A014532.

Sequence in context: A296330 A304162 A001870 * A001047 A099448 A239618

Adjacent sequences:  A025565 A025566 A025567 * A025569 A025570 A025571

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified January 22 16:37 EST 2020. Contains 331152 sequences. (Running on oeis4.)