A179807 Antidiagonal sums of A175105.

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

Author

Mats Granvik, Jul 28 2010

Keywords

• nonn

Comments

The ratio a(n+1)/a(n) tends to 1 + sqrt(2), A014176.

Crossrefs

Cf. A175105, A002193.