OFFSET
1,1
COMMENTS
See Castro-Medina (2016) for precise definition.
It is only a conjecture that this sequence is infinite.
LINKS
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.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Mar 08 2016
STATUS
approved