OFFSET
0,2
COMMENTS
a(6) = 1001.
LINKS
Lars Blomberg, Table of n, a(n) for n = 0..157
EXAMPLE
a(2) = 101 as 101 is the least number that can be modified in two different ways in order to become its square; i.e., 101^2 equals 10201, which can be represented as 1(02)01 or 10(20)1.
a(5) = 950005 because 950005^2 = 902509500025 can be represented in 5 ways: 9(02)5(095)000(2)5, 9(02)50(95)0(0)0(2)5, 9(02)50(95)00(02)5, 9(02)50(950)00(2)5, 9(02509)5000(2)5.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Ivan N. Ianakiev, Oct 15 2016
EXTENSIONS
Terms a(5), a(7) and beyond from Lars Blomberg, Nov 20 2016
STATUS
approved