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A048217
a(n)=T(n+1,n), array T given by A048212.
1
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
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
KEYWORD
nonn
STATUS
approved