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A083049
Antidiagonal sums of table A083047.
2
1, 5, 15, 34, 68, 127, 225, 387, 652, 1084, 1787, 2927, 4775, 7769, 12616, 20462, 33160, 53709, 86962, 140769, 227834, 368711, 596658, 965488, 1562270, 2527887, 4090292, 6618319, 10708756, 17327225, 28036136, 45363522, 73399824, 118763517
OFFSET
0,2
FORMULA
a(n) = Sum_{k=0..n} T(k, n-k), 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.
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Apr 18 2003
STATUS
approved