login
A184009
n-1+ceiling((3/4)n^2); complement of A184008.
1
1, 3, 6, 10, 15, 21, 27, 35, 43, 52, 62, 73, 85, 97, 111, 125, 140, 156, 173, 191, 209, 229, 249, 270, 292, 315, 339, 363, 389, 415, 442, 470, 499, 529, 559, 591, 623, 656, 690, 725, 761, 797, 835, 873, 912, 952, 993, 1035, 1077, 1121, 1165, 1210, 1256, 1303, 1351, 1399, 1449, 1499, 1550, 1602, 1655, 1709, 1763, 1819, 1875, 1932, 1990, 2049, 2109, 2169, 2231, 2293
OFFSET
1,2
MATHEMATICA
a=7/3; b=0;
Table[n+Floor[(a*n+b)^(1/2)], {n, 100}]
Table[n-1+Ceiling[(n*n-b)/a], {n, 80}]
CROSSREFS
Cf. A184008.
Sequence in context: A194082 A061786 A171971 * A105334 A249736 A371473
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jan 08 2011
STATUS
approved