A214983 Antidiagonal sums of the array A028412.

1, 2, 6, 16, 51, 195, 932, 5651, 43641, 428905, 5362388, 85303080, 1726416461, 44444215422, 1455335603434, 60619535173748, 3211914908993651, 216474718772864071, 18558435268379931580, 2023812522812259857355

Offset: 1

Author

Clark Kimberling, Oct 28 2012

Keywords

• nonn

Examples

			a(1) = 1
a(2) = 1 + 1
a(3) = 2 + 3 + 1
		

Links

• Clark Kimberling, Table of n, a(n) for n = 1..100

Crossrefs

Cf. A000045, A028412.

Programs

Mathematica

(See A028412.)

Formula

Sum{F(m*(n+1-m))/F(m), m = 1,2,...,n}, where F = A000045 (Fibonacci numbers)