OFFSET
1,2
COMMENTS
By definition, this sequence consists of an infinite sequence of finite subsequences of increasing lengths with common differences a(1), a(2), a(3), ..., respectively.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..10000
FORMULA
a(1)=1; a(n) = a(n-1) + a(floor(sqrt(n))) for n > 1.
MAPLE
a:= proc(n) option remember;
`if`(n<2, 1, a(n-1)+a(floor(sqrt(n))))
end:
seq(a(n), n=1..80); # Alois P. Heinz, Apr 09 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
Rick L. Shepherd, Jul 20 2004
STATUS
approved