Search: id:A122761 Results 1-1 of 1 results found. %I A122761 %S A122761 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, %T A122761 729,2,6,18,54,162,486,1458,4374,1,3,9,27,81,243,729,2187,6561,2,6,18, %U A122761 54,162,486,1458,4374,13122,39366,1,3,9,27,81,243,729,2187,6561,19683 %N 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. %D A122761 Lynn Arthur Steen and J. Arthur Seebach, Jr., Counterexamples in Topology, Dover, New York, 1978, pp. 57-58 %F A122761 t(n,m)=3^n*(1+Mod[n,2]) %e A122761 1 %e A122761 2, 6 %e A122761 1, 3, 9 %e A122761 2, 6, 18, 54 %e A122761 1, 3, 9, 27, 81 %e A122761 2, 6, 18, 54, 162, 486 %e A122761 1, 3, 9, 27, 81, 243, 729 %t A122761 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] %Y A122761 Sequence in context: A078434 A021892 A121601 this_sequence A100469 A124320 A156146 %Y A122761 Adjacent sequences: A122758 A122759 A122760 this_sequence A122762 A122763 A122764 %K A122761 nonn,tabl,uned %O A122761 1,2 %A A122761 Roger Bagula (rlbagulatftn(AT)yahoo.com), Sep 21 2006 Search completed in 0.001 seconds