OFFSET
0
LINKS
Ian R Harris, Sprimes: A Sparse Prime-Like Sequence of Natural Numbers Generated by the Goldbach Conjecture, Technical report TR-375.
EXAMPLE
a(1) = 1 because 2*1+1 = 3 is Sprime;
a(2) = 0 because 2*2+1 = 5 is not Sprime;
a(3) = 1 because 2*3+1 = 7 is Sprime;
a(4) = 0 because 2*4+1 = 9 is not Sprime.
CROSSREFS
KEYWORD
nonn
AUTHOR
Ian R Harris, Feb 03 2015
EXTENSIONS
Terms a(58) and beyond from Andrew Howroyd, Dec 23 2019
STATUS
approved