OFFSET
1,1
COMMENTS
The sequence contains the following squares: 315844, 289, 81, 9, and is eventually periodic. - Rémy Sigrist, Jul 13 2019
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..100
Rémy Sigrist, PARI program for A308055
FORMULA
EXAMPLE
a(1) = 2;
25 is the smallest square with 2 as a prefix;
a(2) = sqrt(25) = 5;
529 is the smallest square with 5 as a prefix;
a(3) = sqrt(529) = 23;
2304 is the smallest square with 23 as a prefix;
a(4) = sqrt(2304) = 48; etc.
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
AUTHOR
Sean Lipton, May 09 2019
EXTENSIONS
a(31)-a(39) from Jon E. Schoenfield, May 10 2019
Comments corrected by Rémy Sigrist, Jul 13 2019
STATUS
approved