OFFSET
0,3
LINKS
Michael De Vlieger, Table of n, a(n) for n = 0..10000
FORMULA
a(n) = A061288(n^2). - Alois P. Heinz, Jun 01 2024
MAPLE
a:= n-> floor(sqrt((t-> t*(t+1)/2)(n^2))):
seq(a(n), n=0..52); # Alois P. Heinz, Jun 01 2024
MATHEMATICA
Array[Floor@ Sqrt[(#^4 + #^2)/2] &, 53, 0] (* Michael De Vlieger, Jun 02 2024 *)
PROG
(PARI) a(n) = sqrtint((n^4+n^2)/2)
CROSSREFS
KEYWORD
nonn
AUTHOR
Hugo Pfoertner, Jun 01 2024
STATUS
approved