A144799 Integers having ideal digital mean up to base 4.

141, 147, 153, 177, 195, 201, 225, 2079, 2109, 2418, 2424, 2508, 2652, 2868, 2892, 2898, 3102, 3126, 3150, 3228, 3282, 3288, 3300, 3312, 3342, 3354, 3366, 3378, 3384, 3426, 3462, 3468, 3474, 3504, 3522, 3528, 3696, 3792, 3846, 3852, 3864, 3912, 3936

Offset

1,1

Comments

Subset of A031443 and A144798.

These numbers have digital mean dm(b, n) = (Sum_{i=1..d} 2*d_i - (b-1)) / (2*d) = 0, where d is the number of digits in the base b representation of n and d_i the individual digits, for 2 <= b <= 4.

Links

Table of n, a(n) for n=1..43.

Crossrefs

Cf. A007953, A008591, A031443, A144777, A144798, A364714.

Sequence in context: A186962 A235689 A045935 * A208179 A368670 A045936

Adjacent sequences: A144796 A144797 A144798 * A144800 A144801 A144802

Keyword

base,easy,nonn

Author

Reikku Kulon, Sep 21 2008

Extensions

Added accidentally omitted terms. Reikku Kulon, Sep 24 2008

Status

approved