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A194176
Partial sums of A194175.
2
0, 0, 1, 3, 5, 8, 12, 16, 21, 26, 31, 37, 43, 49, 56, 63, 71, 80, 89, 99, 110, 121, 133, 145, 157, 170, 184, 198, 212, 227, 242, 257, 273, 290, 307, 325, 343, 362, 381, 401, 421, 442, 463, 485, 507, 530, 553, 577, 602, 627, 653, 679, 706, 733, 761, 789
OFFSET
1,4
MATHEMATICA
r = Sqrt[7];
a[n_] := Floor[Sum[FractionalPart[k*r], {k, 1, n}]]
Table[a[n], {n, 1, 90}] (* A194175 *)
s[n_] := Sum[a[k], {k, 1, n}]
Table[s[n], {n, 1, 100}] (* A194176 *)
CROSSREFS
Cf. A194175.
Sequence in context: A023562 A194207 A236538 * A186494 A371702 A194180
KEYWORD
nonn
AUTHOR
Clark Kimberling, Aug 18 2011
STATUS
approved