A157465 Numbers seen as squares with at most one missing digit in decimal representation.

0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 14, 16, 19, 21, 22, 24, 25, 26, 28, 29, 31, 32, 34, 36, 40, 41, 44, 48, 49, 52, 56, 57, 59, 61, 62, 64, 65, 66, 67, 69, 72, 74, 76, 78, 79, 81, 84, 89, 90, 91, 96, 100, 102, 104, 108, 109, 115, 116, 121, 122, 124, 125, 126, 129, 136

Offset: 1

Author

Reinhard Zumkeller, Mar 01 2009

Keywords

• base
• nonn

Comments

A157464(a(n)) > 0; A000290(n) is a subsequence;

A157466 gives numbers of these numbers <= n, A157466(a(n+1))=A157466(a(n))+1.

Examples

			Insert 5 into 200: 2500=50^2, therefore 200 is a term;
insert 4 into 201: 2401=49^2, therefore 201 is a term;
append 5 to 202: 2025=45^2, therefore 202 is a term.
		

Links

• R. Zumkeller, Table of n, a(n) for n = 1..1000