A182828 Array of the numbers (3*i+1)*3^j, i>=0, j>=0, read by antidiagonals.

1, 3, 4, 9, 12, 7, 27, 36, 21, 10, 81, 108, 63, 30, 13, 243, 324, 189, 90, 39, 16, 729, 972, 567, 270, 117, 48, 19, 2187, 2916, 1701, 810, 351, 144, 57, 22, 6561, 8748, 5103, 2430, 1053, 432, 171, 66, 25, 19683, 26244, 15309, 7290, 3159

Offset

1,2

Links

Table of n, a(n) for n=1..50.

Formula

T(i,j) = (3*i+1)*3^j, i>=0, j>=0.

Example

Northwest corner:
1....3....9...27...
4...12...36..108...
7...21...63..189...
10..30...90..270...

Crossrefs

Cf. A000244 (row 1), A016777 (column 1).

Cf. A054582, A182829, A182830.

Terms in ascending order: A026225.

Sequence in context: A062798 A327060 A270817 * A294229 A035256 A287400

Adjacent sequences: A182825 A182826 A182827 * A182829 A182830 A182831

Keyword

nonn,tabl

Author

Clark Kimberling, Dec 06 2010

Status

approved