a(n) = sum of squares of numbers < 2^n having exactly 3 ones in their binary representation.
A110203
a(n) = sum of squares of numbers < 2^n having exactly 3 ones in their binary representation.
Terms
- a(0) =0a(1) =0a(2) =49a(3) =535a(4) =3906a(5) =24066a(6) =135255a(7) =717825a(8) =3662848a(9) =18158932a(10) =88043517a(11) =419348475a(12) =1968346446a(13) =9126412278a(14) =41875079155a(15) =190408381765a(16) =858989527020
External references
- oeis: A110203