A179235 Row sums of the irregular triangle A179236.

1, 4, 48, 744, 17640, 647280, 29116080

Offset

1,2

Comments

The approach used to generate A179235 and A179236 can also be used for A178802 and A049009.

Links

Table of n, a(n) for n=1..7.

Example

A179236 begins
1;
2,2;
6,36,6;
24,192,72,432,24;
120,1200,2400,3600,5400,4800,120;
so this sequence begins 1,4,48,...

Crossrefs

Cf. A049009, A178802

Sequence in context: A003774 A214819 A211198 * A183204 A371677 A369537

Adjacent sequences: A179232 A179233 A179234 * A179236 A179237 A179238

Keyword

more,nonn

Author

Alford Arnold, Jul 04 2010

Extensions

Two more terms from R. J. Mathar, Oct 29 2011

Status

approved