login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A324019 Triangle T(n,k) read by rows giving the number of k-digit zeroless polydivisible numbers in base n with 1 <= k <= n-1. 5
1, 2, 2, 3, 3, 3, 4, 8, 10, 10, 5, 10, 10, 10, 10, 6, 18, 36, 52, 62, 62, 7, 21, 49, 49, 68, 68, 68, 8, 32, 64, 128, 205, 205, 233, 233, 9, 36, 108, 216, 216, 324, 416, 416, 416, 10, 50, 166, 416, 832, 1382, 1967, 2465, 2726, 2726, 11, 55, 165, 330, 726, 726, 1140, 1140, 1140, 1140, 1140 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
2,2
COMMENTS
For k >= n there is no k-digit zeroless polydivisible number in base n.
LINKS
Seiichi Manyama, Rows n = 2..18, flattened
EXAMPLE
Triangle begins:
n\k | 1 2 3 4 5 6 7 8 9
-----+------------------------------------------
2 | 1;
3 | 2, 2;
4 | 3, 3, 3;
5 | 4, 8, 10, 10;
6 | 5, 10, 10, 10, 10;
7 | 6, 18, 36, 52, 62, 62;
8 | 7, 21, 49, 49, 68, 68, 68;
9 | 8, 32, 64, 128, 205, 205, 233, 233;
10 | 9, 36, 108, 216, 216, 324, 416, 416, 416;
CROSSREFS
Row sums give A324020.
Sequence in context: A110868 A110869 A110876 * A275378 A300506 A300888
KEYWORD
nonn,tabl,base
AUTHOR
Seiichi Manyama, Sep 01 2019
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 19 01:34 EDT 2024. Contains 370952 sequences. (Running on oeis4.)