A091937 Greatest number of 1's in binary representations of primes between 2^n and 2^(n+1).

2, 3, 3, 5, 5, 7, 7, 8, 9, 10, 11, 13, 13, 13, 15, 17, 17, 19, 19, 20, 21, 21, 23, 24, 25, 25, 27, 28, 29, 31, 31, 32, 33, 34, 35, 35, 37, 37, 39, 40, 41, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 53, 55, 56, 56, 58, 59, 61, 61, 61, 63, 64, 65, 66, 67, 68, 69, 69, 71, 72

Offset: 1

Author

Reinhard Zumkeller, Feb 14 2004

Keywords

• nonn

Comments

a(n) = A000120(A091938(n)).

Crossrefs

Cf. A091935.

Programs

Mathematica

Run the second Mathematica line of A091938, then Count[ IntegerDigits[ #, 2], 1] & /@ Table[ f[n], {n, 75}]

Extensions

More terms from Robert G. Wilson v, Feb 20 2004