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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 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

(Row 1)=A008776.  (Column 1)=A016789.

LINKS

Table of n, a(n) for n=1..48.

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

Cf. A026179, A182831.

Sequence in context: A009460 A085205 A094595 * A280530 A281280 A281179

Adjacent sequences:  A182827 A182828 A182829 * A182831 A182832 A182833

KEYWORD

nonn,tabl

AUTHOR

Clark Kimberling, Dec 06 2010

STATUS

approved

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Last modified September 20 23:04 EDT 2021. Contains 347596 sequences. (Running on oeis4.)