A178802 Multiply, cell by cell, sequence A048996 by A178801.

1, 1, 2, 2, 6, 12, 6, 24, 48, 24, 72, 24, 120, 240, 240, 360, 360, 480, 120, 720, 1440, 1440, 720, 2160, 4320, 720, 2880, 4320, 3600, 720, 5040, 10080, 10080, 10080, 15120, 30240, 15120, 15120, 20160, 60480, 20160, 25200, 50400, 30240, 5040, 40320, 80640, 80640, 80640, 40320, 120960

Offset

0,3

Links

Table of n, a(n) for n=0..50.

Formula

T(n,k) = A048996(n,k) * A178801(n,k) = A048996(n,k) * n!.

Example

A048996 begins 1,1,1,1,1,2,1, 1, 2, 1, 3, 1 ...
A178801 begins 1,1,2,2,6,6,6,24,24,24,24,24,...
therefore
a(n)    begins 1,1,2,2,6,12,6,...
with row sums 1, 1, 4, 24, 192, 1920, 23040, ... .
Triangle begins:
    1;
    1;
    2,    2;
    6,   12,    6;
   24,   48,   24,  72,   24;
  120,  240,  240, 360,  360,  480, 120;
  720, 1440, 1440, 720, 2160, 4320, 720, 2880, 4320, 3600, 720;
  ...

Crossrefs

Cf. A000041, A000142, A048996, A178801, A002866 (row sums).

Sequence in context: A351081 A241669 A356546 * A156992 A285529 A305215

Adjacent sequences: A178799 A178800 A178801 * A178803 A178804 A178805

Keyword

easy,nonn,tabf

Author

Alford Arnold, Jun 15 2010

Status

approved