A053444 x^2 + y^2 mod A053443(n) does not take on value a(n).

3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 7, 3, 3, 3, 3, 3, 3, 3, 3, 11, 3, 3, 3, 3, 3, 3, 3, 3, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 11, 3, 3, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3

Offset

1,1

Links

Antti Karttunen, Table of n, a(n) for n = 1..5000

Prog

(PARI)
A053444list(up_to) = { my(v=vector(up_to), t, n=1, i=0); while(i<up_to, my(u=vector(n), ind); for(x=0, (n+1)\2, for(y=0, x, u[((x^2+y^2)%n)+1]=1)); if(0==vecmin(u, &ind), i++; v[i] = ind-1); n++); (v); };
v053444 = A053444list(up_to);
A053444(n) = v053444[n]; \\ Antti Karttunen, Nov 07 2018

Crossrefs

Cf. A053443.

Sequence in context: A157831 A032552 A087717 * A175797 A358475 A379095

Adjacent sequences: A053441 A053442 A053443 * A053445 A053446 A053447

Keyword

nonn

Author

David W. Wilson

Status

approved