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A023666
Convolution of A000201 and A014306.
0
0, 1, 4, 7, 11, 18, 25, 34, 45, 56, 69, 83, 98, 116, 135, 155, 178, 201, 227, 253, 279, 308, 338, 370, 404, 438, 476, 514, 553, 596, 638, 683, 730, 777, 827, 876, 927, 981, 1034, 1092, 1149, 1208, 1269, 1331, 1396, 1462, 1528, 1599, 1669, 1741
OFFSET
1,3
CROSSREFS
Sequence in context: A350477 A310767 A207871 * A023502 A274286 A024882
KEYWORD
nonn
STATUS
approved