OFFSET
0,3
COMMENTS
FORMULA
a(n) = A000194(n+2) - [n=1], where [P]=1 if P is true, [P]=0 else.
PROG
(PARI) A238598(n)=ceil(sqrtint(4*n+8)/2)-(n==1)
CROSSREFS
KEYWORD
nonn
AUTHOR
M. F. Hasler, Mar 01 2014
STATUS
approved