Number of k in the range 2^n <= k < 2^(n+1) whose shortest addition chain does not have length n, n+1 or n+2.
A372152
Number of k in the range 2^n <= k < 2^(n+1) whose shortest addition chain does not have length n, n+1 or n+2.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =2a(5) =9a(6) =30a(7) =80a(8) =193a(9) =432a(10) =925a(11) =1928a(12) =3953a(13) =8024a(14) =16189a(15) =32544
External references
- oeis: A372152