OFFSET
1,2
COMMENTS
Partial sums of A103128.
MATHEMATICA
Table[Sum[Floor[Sqrt[2 i - 1]], {i, n}], {n, 100}]
PROG
(PARI) a(n) = sum(k=1, n, sqrtint(2*k-1)); \\ Michel Marcus, Aug 18 2020
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Wesley Ivan Hurt, Aug 18 2020
STATUS
approved