|
| |
|
|
A090044
|
|
Triangle read by rows: T(n,k) = A083093 with 1's and 2's interchanged.
|
|
2
| |
|
|
2, 2, 2, 2, 1, 2, 2, 0, 0, 2, 2, 2, 0, 2, 2, 2, 1, 2, 2, 1, 2, 2, 0, 0, 1, 0, 0, 2, 2, 2, 0, 1, 1, 0, 2, 2, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 1, 2, 0, 0, 0, 0, 0, 0, 2, 1, 2, 2, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 2, 2, 2, 0, 2, 2, 0, 0, 0, 0, 2, 2, 0, 2, 2
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,1
|
|
|
REFERENCES
| Y. Moshe, The density of 0's in recurrence double sequences, J. Number Theory, 103 (2003), 109-121; see Fig. 1.
Y. Moshe, The distribution of elements in automatic double sequences, Discr. Math., 297 (2005), 91-103.
|
|
|
FORMULA
| The negative of Pascal's triangle read mod 3.
|
|
|
EXAMPLE
| 2; 2,2; 2,1,2; 2,0,0,2; ...
|
|
|
MATHEMATICA
| -Mod[ Flatten[ Table[ Binomial[n, k], {n, 0, 13}, {k, 0, n}]], -3] (from Robert G. Wilson v Jan 19 2004)
|
|
|
CROSSREFS
| Cf. A007318, A083093.
Sequence in context: A172363 A181877 A175357 * A036238 A063982 A055020
Adjacent sequences: A090041 A090042 A090043 * A090045 A090046 A090047
|
|
|
KEYWORD
| nonn,tabl,easy
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jan 19 2004
|
|
|
EXTENSIONS
| Extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 19 2004
|
| |
|
|
