a(n) is the smallest k such that tau(k*2^n + 1) is equal to 2^n where tau = A000005.
A380084
a(n) is the smallest k such that tau(k*2^n + 1) is equal to 2^n where tau = A000005.
Terms
- a(0) =0a(1) =1a(2) =5a(3) =13a(4) =59a(5) =502a(6) =3086a(7) =32728a(8) =421769a(9) =8386552a(10) =65004026a(11) =2038040548a(12) =35000607914
External references
- oeis: A380084