A048217 a(n)=T(n+1,n), array T given by A048212.

1, 5, 11, 19, 28, 40, 55, 71, 91, 113, 137, 162, 188, 220, 253, 287, 324, 362, 403, 448, 495, 543, 596, 652, 711, 772, 834, 898, 966, 1035, 1109, 1185, 1262, 1340, 1421, 1505, 1592, 1680, 1769, 1865, 1963, 2063, 2166, 2271, 2377

Offset

1,2

Links

Table of n, a(n) for n=1..45.

Formula

a(n) = A004979(n + 2) - 3. - Sean A. Irvine, Jun 05 2021

Crossrefs

Cf. A004979.

Sequence in context: A088638 A333675 A051349 * A336015 A132087 A089270

Adjacent sequences: A048214 A048215 A048216 * A048218 A048219 A048220

Keyword

nonn

Author

Clark Kimberling

Status

approved