|
| |
|
|
A191780
|
|
Triangle G(n,k): the value of n written in base k with digits reversed (but written here in base 10) for 2 <= k <= n.
|
|
1
|
|
|
|
1, 3, 1, 1, 4, 1, 5, 7, 5, 1, 3, 2, 9, 6, 1, 7, 5, 13, 11, 7, 1, 1, 8, 2, 16, 13, 8, 1, 9, 1, 6, 21, 19, 15, 9, 1, 5, 10, 10, 2, 25, 22, 17, 10, 1, 13, 19, 14, 7, 31, 29, 25, 19, 11, 1, 3, 4, 3, 12, 2, 36, 33, 28, 21, 12, 1, 11, 13, 7, 17, 8, 43, 41, 37, 31, 23, 13, 1, 7, 22, 11, 22, 14, 2, 49, 46, 41, 34, 25, 14, 1, 15, 7, 15, 3
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
2,2
|
|
|
LINKS
|
Table of n, a(n) for n=2..96.
|
|
|
EXAMPLE
|
The triangle starts
1
3...1
1...4...1
5...7...5...1
3...2...9...6...1
|
|
|
MAPLE
|
A191780 := proc(n, k) d := ListTools[Reverse](convert(n, base, k)) ; add( op(i, d)*k^(i-1), i=1..nops(d)) ;
end proc: # R. J. Mathar, Aug 26 2011
|
|
|
CROSSREFS
|
Cf. A007088-A007095, A030101 (column k=2), A030102 (column k=3), A030103 (column k=4).
Sequence in context: A138684 A132442 A074927 * A139605 A098712 A023579
Adjacent sequences: A191777 A191778 A191779 * A191781 A191782 A191783
|
|
|
KEYWORD
|
nonn,tabl,base,easy
|
|
|
AUTHOR
|
Juri-Stepan Gerasimov, Aug 02 2011
|
|
|
EXTENSIONS
|
Corrected by R. J. Mathar, Aug 26 2011
|
|
|
STATUS
|
approved
|
| |
|
|
