A269727 Primes avoided by certain exponential sums.

17, 73, 89, 97, 113, 193, 233, 241, 257, 281, 337, 401, 433, 449

Offset

1,1

Comments

Castro-Medina (2016) say: "At the moment of writing this manuscript, the authors did not see any pattern [to this sequence]".

Links

Table of n, a(n) for n=1..14.

Francis N. Castro and Luis A. Medina, Modular periodicity of exponential sums of symmetric Boolean functions and some of its consequences, arXiv:1603.00534 [math.NT], 2016. See Av(4,F(X)).

Crossrefs

Sequence in context: A229496 A268544 A059704 * A337704 A121243 A039371

Adjacent sequences: A269724 A269725 A269726 * A269728 A269729 A269730

Keyword

nonn,more

Author

N. J. A. Sloane, Mar 08 2016

Status

approved