A083048 Main diagonal of table A083047.

1, 5, 17, 36, 80, 164, 300, 575, 1020, 1884, 3426, 5921, 10568, 18697, 31850, 55716, 94332, 163579, 282388, 474625, 814328, 1363979, 2328358, 3963781, 6609951, 11209355, 18969158, 31524783, 53186480, 88235842, 148471479, 249459365

Offset: 0

Author

Paul D. Hanna, Apr 18 2003

Keywords

• nonn

Crossrefs

Cf. A083044, A083047, A083050, A083049.

Formula

a(n) = T(n, n), where T(n, 0) = floor(n*x/(x-1)) + 1, T(n, k+1) = ceiling(x*T(n, k)), for n >= 0, k >= 0, with x = (sqrt(5)+1)/2.