A026679 Sum{T(i,j)}, 0<=i<=n, 0<=j<=n, T given by A026670.

1, 3, 8, 18, 41, 87, 190, 396, 851, 1761, 3754, 7740, 16419, 33777, 71410, 146676, 309319, 634605, 1335680, 2737830, 5753393, 11784519, 24732602, 50628768, 106142095, 217168749, 454874296, 930285390, 1947021505

Offset

0,2

Links

Table of n, a(n) for n=0..28.

Crossrefs

Partial sums of A026677.

Sequence in context: A117080 A240135 A066425 * A371682 A191524 A026756

Adjacent sequences: A026676 A026677 A026678 * A026680 A026681 A026682

Keyword

nonn

Author

Clark Kimberling

Status

approved