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

Author

Reikku Kulon, Sep 21 2008

Keywords

• base
• easy
• nonn

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

• Jason Yuen, Table of n, a(n) for n = 1..10000

Crossrefs

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

Extensions

Added accidentally omitted terms. - Reikku Kulon, Sep 24 2008