A277441 Least number k such that k^2 can be obtained from k by inserting n internal (but not necessarily contiguous) digits.

0, 10, 95, 950, 9500, 89476, 894760, 8946105, 89448001, 894438005, 8944300005, 89442827780, 894427300005, 8944273000005, 89442720000005, 894427196000005, 8944271912400005, 89442719120000005, 894427191000000005, 8944271910000000005, 89442719100000000005, 894427191000000000005

Offset: 0

Author

Ivan N. Ianakiev, Oct 15 2016

Keywords

• nonn
• base

Comments

A subsequence of A046851.

Examples

			a(2) = 95 as 95 is the least number that needs two internal digits inserted to become its square, i.e., 95 squared is 9(02)5.
		

Crossrefs

Cf. A046851, A277442.

Extensions

More terms from Paolo P. Lava, Oct 20 2016

a(13)-a(21) from Giovanni Resta, Jul 06 2019