A027108 a(n) = T(n,n+1) + T(n,n+2) + ... + T(n,2n), T given by A027082.

1, 5, 16, 50, 152, 452, 1331, 3897, 11378, 33186, 96791, 282461, 825013, 2412157, 7060154, 20686324, 60673102, 178126774, 523426827, 1539393889, 4530901919, 13345545959, 39335284312, 116011722730, 342354698603

Offset

0,2

Links

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

Crossrefs

Sequence in context: A084356 A007806 A037480 * A304168 A317817 A077840

Adjacent sequences: A027105 A027106 A027107 * A027109 A027110 A027111

Keyword

nonn

Author

Clark Kimberling

Status

approved