A246448 Numbers n such that a square will never end in the digits of n.

2, 3, 7, 8, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 22, 23, 26, 27, 28, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 42, 43, 45, 46, 47, 48, 50, 51, 52, 53, 54, 55, 57, 58, 59, 60, 62, 63, 65, 66, 67, 68, 70, 71, 72, 73, 74, 75, 77, 78, 79, 80, 82, 83, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95

Offset: 1

Author

Derek Orr, Aug 26 2014

Keywords

• nonn
• base

Comments

Complement of A238712.

Examples

			No square will ever end in a 2, thus 2 is a member of this sequence.
		

Crossrefs

Cf. A238712.

Programs

PARI

b(n)=v=[];for(k=10^(n-1),10^n,v=concat(v,k^2%10^n));v=vecsort(v,,8);v
for(n=1,500,d=digits(n);if(!vecsearch(b(#d),n),print1(n,", ")))