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A048205
a(n)=T(n+2,n), array T given by A048201.
0
4, 9, 17, 27, 41, 56, 72, 93, 115, 140, 166, 194, 227, 261, 296, 332, 370, 410, 452, 498, 546, 595, 645, 698, 755, 815, 877, 941, 1006, 1076, 1153, 1233, 1314, 1397, 1482, 1568, 1658, 1749, 1841, 1941, 2045, 2152, 2260, 2376
OFFSET
1,1
FORMULA
a(n) = A004978(n+3) - 4. - Sean A. Irvine, Jun 05 2021
CROSSREFS
Cf. A004978.
Sequence in context: A022789 A033607 A019572 * A078567 A033617 A033613
KEYWORD
nonn
STATUS
approved