OFFSET
1,2
COMMENTS
Joint-rank arrays are defined in the first comment at A182801. As for any joint-rank array, A182950 is a permutation of the positive integers, but, a fortiori, A182950 is an interspersion: after initial terms every row is interspersed with all other rows. The numbers (3*i+2)*3^j as an array comprise A182830; and sorted, possibly A026179.
(row 1)=A000244.
(row 2)=A060816.
(row 3)=A003946.
(row 4)=A052909.
(row 5)=A027107?
LINKS
Clark Kimberling, Interspersions and Dispersions.
EXAMPLE
Northwest corner:
1....3....9....27...
2....7...22....67...
4...12...36...108...
5...16...49...148...
MATHEMATICA
M[i_, j_]:=j+Floor[Log[3*i/2+1]/Log[3]];
T[i_, j_]:=Sum[Floor[1/3+(3*i+2)*3^(j-k-1)], {k, 0, M[i, j]}];
TableForm[Table[T[i, j], {i, 0, 9}, {j, 0, 9}]]
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Clark Kimberling, Dec 15 2010
STATUS
approved