A199582 Central terms of the triangle in A199333: a(n) = A199333(n,[n/2])

1, 1, 2, 3, 7, 13, 29, 53, 107, 211, 431, 809, 1619, 3037, 6079, 11467, 22937, 43541, 87083, 166183, 332393, 636761, 1273541, 2448049, 4896103, 9438851, 18877711, 36484271, 72968563, 141332173, 282664351, 548544487, 1097088989, 2132671027, 4265342057

Offset

0,3

Comments

a(n) = max(A199333(n,k): 0<=k<=n/2) = A006530(A199695(n)) = A006530(A199696(n));

a(2*n) = A007918(a(2*n-1)) for n > 0.

Links

Reinhard Zumkeller, Table of n, a(n) for n = 0..150

Prog

(Haskell)
a199582 n = a199333_row n !! (n `div` 2)

Crossrefs

Cf. A199581, A001405.

Sequence in context: A296415 A113823 A113843 * A255516 A113884 A070218

Adjacent sequences: A199579 A199580 A199581 * A199583 A199584 A199585

Keyword

nonn

Author

Reinhard Zumkeller, Nov 09 2011

Status

approved