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A026550 Sum{T(i,j)}, 0<=j<=i, 0<=i<=n, T given by A026536. 1
1, 2, 6, 13, 35, 77, 204, 453, 1199, 2675, 7089, 15855, 42070, 94228, 250269, 561068, 1491262, 3345334, 8896310, 19966310, 53118352, 119257668, 317373194, 712742108, 1897253203, 4261711183, 11346582851, 25491926511, 67882263130 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

CROSSREFS

Cf. A026548.

Sequence in context: A116426 A196906 A162057 * A319751 A124124 A052450

Adjacent sequences:  A026547 A026548 A026549 * A026551 A026552 A026553

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 8 08:27 EDT 2020. Contains 336293 sequences. (Running on oeis4.)