

A182702


Triangle T(n,k) = n*(A000041(nk)) 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
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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, n1, print1(n*numbpart(nk), ", "); ); print(); ); } \\ Michel Marcus, Feb 13 2014


CROSSREFS

Cf. A000041, A135010, A138121, A182701, A182702.
Column 1 give A066186.
Sequence in context: A082156 A114577 A191426 * A282600 A257734 A257732
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



