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A182830
Array of the numbers (3*i+2)*3^j, i>=0, j>=0, read by antidiagonals.
2
2, 6, 5, 18, 15, 8, 54, 45, 24, 11, 162, 135, 72, 33, 14, 486, 405, 216, 99, 42, 17, 1458, 1215, 648, 297, 126, 51, 20, 4374, 3645, 1944, 891, 378, 153, 60, 23, 13122, 10935, 5832, 2673, 1134, 459, 180, 69, 26, 39366, 32805, 17496
OFFSET
1,1
COMMENTS
(Row 1)=A008776. (Column 1)=A016789.
FORMULA
T(i,j)=(3*i+2)*3^j, i>=0, j>=0.
EXAMPLE
Northwest corner:
2....6...18...54...162...
5...15...45..135...405...
8...24...72..216...648...
11..33...99..297...891...
CROSSREFS
Sequence in context: A009460 A085205 A094595 * A371282 A280530 A281280
KEYWORD
nonn,tabl
AUTHOR
Clark Kimberling, Dec 06 2010
STATUS
approved