login
For numbers k such that A080570(k) and 2*A080571(k) are distinct Ulam numbers, sequence gives A002858(k).
0

%I #13 Sep 05 2020 20:32:56

%S 3,6,8,11,36,47

%N For numbers k such that A080570(k) and 2*A080571(k) are distinct Ulam numbers, sequence gives A002858(k).

%C No others terms <= 41000.

%C A002858(k) = A080570(k) + 2*A080571(k).

%Y Cf. A002858, A080570, A080571.

%K nonn,more

%O 1,1

%A _Naohiro Nomoto_, Feb 23 2003

%E Incorrect terms removed by _Jinyuan Wang_, Sep 05 2020