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A199581
Central terms of the triangle in A199333: a(n) = A199333(2*n,n).
3
1, 2, 7, 29, 107, 431, 1619, 6079, 22937, 87083, 332393, 1273541, 4896103, 18877711, 72968563, 282664351, 1097088989, 4265342057, 16608401041, 64758466127, 252814859149, 988089813541, 3865761355523, 15138431958437, 59333638261529, 232737382916429
OFFSET
0,2
COMMENTS
a(n) = A199582(2*n).
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 0..75
PROG
(Haskell)
a199581 n = a199333_row (2*n) !! n
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Nov 09 2011
STATUS
approved