A390293 - OEIS

%I #59 Jan 07 2026 16:54:52

%S 1,2,3,5,10,11,22,25,31,55,79,93,97,121,127,211,257,341,487,509,661,

%T 907,1397,1621,2293,3463,4451,4943,7057,7573,10501,10957,14551,15227,

%U 20297,25667,30463,35171,42569,58067,73637,88301,110603,115901,158371,219251

%N Positions of records in A196047.

%C A number m belongs to this sequence iff A196047(k) < A196047(m) for all k<m.

%F a(n+1) <= 2*a(n); this follows from the fact that A196047(2*m) = A196047(2) + A196047(m) = 1 + A196047(m); thus if m belongs to this sequence then either 2*m does or there exists a smaller number that does.

%Y Cf. A196047.

%K nonn

%O 1,2

%A _Jakub Kozak_, Jan 03 2026