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A182702 Triangle T(n,k) = n*(A000041(n-k)) read by rows, k>=0. 4
1, 4, 2, 9, 6, 3, 20, 12, 8, 4, 35, 25, 15, 10, 5, 66, 42, 30, 18, 12, 6, 105, 77, 49, 35, 21, 14, 7, 176, 120, 88, 56, 40, 24, 16, 8, 270, 198, 135, 99, 63, 45, 27, 18, 9, 420, 300, 220, 150, 110, 70, 50, 30, 20, 10, 616, 462, 330, 242, 165, 121, 77, 55, 33, 22, 11 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The same as A182700, but without the last term of row n.

LINKS

Table of n, a(n) for n=1..66.

EXAMPLE

Triangle begins:

1;

4, 2;

9, 6, 3;

20, 12, 8, 4;

35, 25, 15, 10, 5;

66, 42, 30, 18, 12, 6;

PROG

(PARI) tabl(nn) = {for (n = 1, nn, for (k = 0, n-1, print1(n*numbpart(n-k), ", "); ); print(); ); } \\ Michel Marcus, Feb 13 2014

CROSSREFS

Cf. A000041, A135010, A138121, A182701, A182702.

Column 1 give A066186.

Sequence in context: A082156 A114577 A191426 * A257734 A257732 A101690

Adjacent sequences:  A182699 A182700 A182701 * A182703 A182704 A182705

KEYWORD

nonn,tabl

AUTHOR

Omar E. Pol, Nov 28 2010

EXTENSIONS

More terms from Michel Marcus, Feb 13 2014

STATUS

approved

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Last modified December 10 23:13 EST 2016. Contains 279021 sequences.