|
| |
|
|
A031007
|
|
Triangle T(n,k): Write n in base 7, reverse order of digits, to get row n.
|
|
18
|
|
|
|
0, 1, 2, 3, 4, 5, 6, 0, 1, 1, 1, 2, 1, 3, 1, 4, 1, 5, 1, 6, 1, 0, 2, 1, 2, 2, 2, 3, 2, 4, 2, 5, 2, 6, 2, 0, 3, 1, 3, 2, 3, 3, 3, 4, 3, 5, 3, 6, 3, 0, 4, 1, 4, 2, 4, 3, 4, 4, 4, 5, 4, 6, 4, 0, 5, 1, 5, 2, 5, 3, 5, 4, 5, 5, 5, 6, 5, 0, 6, 1, 6, 2, 6, 3, 6, 4, 6, 5, 6, 6, 6
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
0,3
|
|
|
LINKS
|
Table of n, a(n) for n=0..90.
|
|
|
MATHEMATICA
|
Flatten[Table[Reverse[IntegerDigits[n, 7]], {n, 0, 50}]] (* Harvey P. Dale, Feb 25 2014 *)
|
|
|
PROG
|
(PARI) A031007(n, k=-1)={k<0&&error("Flattened sequence not yet implemented."); n\7^k%7} \\ Assuming that columns start with k=0 as in A030308, A030341, ... TO DO: implement flattened sequence, such that A030567(n)=a(n). - M. F. Hasler, Jul 21 2013
|
|
|
CROSSREFS
|
Cf. A030308, A030341, A030386, A031235, A030567, A031045, A031087, A031298 for the base-2 to base-10 analogs.
Sequence in context: A265536 A037849 A037885 * A010876 A309958 A055400
Adjacent sequences: A031004 A031005 A031006 * A031008 A031009 A031010
|
|
|
KEYWORD
|
nonn,base,tabf,less
|
|
|
AUTHOR
|
Clark Kimberling
|
|
|
EXTENSIONS
|
Initial 0 and better name by Philippe Deléham, Oct 20 2011.
|
|
|
STATUS
|
approved
|
| |
|
|
