A047026 T(n,n+1), array T given by A047020.

1, 2, 5, 14, 47, 161, 558, 2020, 7398, 27239, 101807, 383210, 1447965, 5507227, 21038148, 80597585, 309861811, 1194651520, 4615681266, 17872627858, 69339129304, 269437315070, 1048578870090, 4086453815450, 15944711627177

Offset

0,2

Links

Table of n, a(n) for n=0..24.

Crossrefs

Sequence in context: A149900 A149901 A149902 * A148338 A149903 A149904

Adjacent sequences: A047023 A047024 A047025 * A047027 A047028 A047029

Keyword

nonn

Author

Clark Kimberling

Status

approved