|
%I #9 May 03 2019 17:35:07
%S 0,2,5,9,12,17,21,25,30,35,39,45,49,54,60,66,69,75,82,86,92,98,102,
%T 110,114,120,126,132,138,144,150,154,161,169,173,181,186,190,198,206,
%U 210,217,223,229,235,243,249,255,261,266,275,281,285,295,301,307,313,319
%N a(n) = Sum_{k>=1} round(n/k) where round(1/2)=1.
%F a(n) = A056548(n) + A001227(n).
%F Conjecture: a(n) = n + Sum_{k=1..n} floor(n/k + 1/2) = n + A077024(n). - _Ridouane Oudra_, Apr 29 2019
%Y Cf. A001227, A006218, A056548, A077024.
%K easy,nonn
%O 0,2
%A _Henry Bottomley_, Jun 21 2000
|
