a(n) is the smallest number k that has a shortest addition chain whose length A003313(k) = A003313(n*k), or 0 if this never happens.
A115016
a(n) is the smallest number k that has a shortest addition chain whose length A003313(k) = A003313(n*k), or 0 if this never happens.
Terms
- a(0) =1a(1) =191a(2) =171a(3) =30958077a(4) =3277a(5) =2731a(6) =28087
External references
- oeis: A115016