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A179807
Antidiagonal sums of A175105.
3
1, 1, 2, 3, 5, 9, 17, 34, 71, 153, 337, 755, 1713, 3925, 9064, 21065, 49213, 115477, 271961, 642495, 1521899, 3613189, 8595037, 20480600, 48874131, 116781789, 279358063, 668925263, 1603145325, 3845056065, 9228442541, 22162387821
OFFSET
1,3
COMMENTS
The ratio a(n+1)/a(n) tends to 1 + sqrt(2), A014176.
CROSSREFS
Sequence in context: A295637 A061902 A166286 * A110113 A341960 A137155
KEYWORD
nonn
AUTHOR
Mats Granvik, Jul 28 2010
STATUS
approved