A144798 Integers having ideal digital mean up to base 3.

38, 42, 56, 139, 141, 147, 153, 169, 177, 195, 201, 225, 542, 558, 572, 598, 604, 654, 666, 678, 684, 779, 781, 803, 805, 835, 899, 905, 913, 929, 2079, 2107, 2109, 2266, 2390, 2396, 2410, 2418, 2424, 2474, 2482, 2506, 2508, 2536, 2606, 2614, 2638, 2650

Offset

1,1

Comments

Subset of A031443.

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 <= 3.

Links

Table of n, a(n) for n=1..48.

Crossrefs

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

Sequence in context: A056027 A072585 A050874 * A066473 A031409 A078550

Adjacent sequences: A144795 A144796 A144797 * A144799 A144800 A144801

Keyword

base,easy,nonn

Author

Reikku Kulon, Sep 21 2008

Extensions

Added accidentally omitted terms. Reikku Kulon, Sep 24 2008

Status

approved