|
| |
|
|
A122761
|
|
"Completed" Cantor based power of three triangular array: t(n,m)=3^n*(1+Mod[n,2]): power sets as {1,0}set +{0,2}set={1,2}set.
|
|
0
| |
|
|
1, 2, 6, 1, 3, 9, 2, 6, 18, 54, 1, 3, 9, 27, 81, 2, 6, 18, 54, 162, 486, 1, 3, 9, 27, 81, 243, 729, 2, 6, 18, 54, 162, 486, 1458, 4374, 1, 3, 9, 27, 81, 243, 729, 2187, 6561, 2, 6, 18, 54, 162, 486, 1458, 4374, 13122, 39366, 1, 3, 9, 27, 81, 243, 729, 2187, 6561, 19683
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
REFERENCES
| Lynn Arthur Steen and J. Arthur Seebach, Jr., Counterexamples in Topology, Dover, New York, 1978, pp. 57-58
|
|
|
FORMULA
| t(n,m)=3^n*(1+Mod[n,2])
|
|
|
EXAMPLE
| 1
2, 6
1, 3, 9
2, 6, 18, 54
1, 3, 9, 27, 81
2, 6, 18, 54, 162, 486
1, 3, 9, 27, 81, 243, 729
|
|
|
MATHEMATICA
| c[n_] := 1 + Mod[n, 2] T3[n_, m_] := 3^n*c[m] c0 = Table[Table[T3[n, m], {n, 0, m}], {m, 0, 10}]; Flatten[c0] MatrixForm[c0]
|
|
|
CROSSREFS
| Sequence in context: A078434 A021892 A121601 * A100469 A124320 A156146
Adjacent sequences: A122758 A122759 A122760 * A122762 A122763 A122764
|
|
|
KEYWORD
| nonn,tabl,uned
|
|
|
AUTHOR
| Roger Bagula (rlbagulatftn(AT)yahoo.com), Sep 21 2006
|
| |
|
|
