1,2
(PARI) an=0; for( i=1, 10^7, an=bitxor(an, i^2); an & an==1<<valuation(an, 2) & print1(valuation(an, 2)", "))
A145830 = A145768 intersect A000079. A145768(A145830(n)) = 2^a(n). See also A145827-A145829.
Sequence in context: A200604 A159468 A010769 * A152990 A177900 A019249
Adjacent sequences: A145828 A145829 A145830 * A145832 A145833 A145834
more,nonn
M. F. Hasler (www.univ-ag.fr/~mhasler), Oct 20 2008
