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A066912 Fourth column of the Eulerian triangle A008292 in square array format. 1
0, 1, 26, 302, 2416, 15619, 88234, 455192, 2203488, 10187685, 45533450, 198410786, 848090912, 3572085255, 14875399450, 61403313100, 251732291184, 1026509354985, 4168403181210, 16871482830550, 68111623139600 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..20.

FORMULA

4^(n+3)-(n+4)*3^(n+3)+1/2*(n+3)*(n+4)*2^(n+3)-1/6*(n+2)*(n+3)*(n+4)

PROG

(PARI) a(n)=4^(n+3)-(n+4)*3^(n+3)+1/2*(n+3)*(n+4)*2^(n+3)-1/6*(n+2)*(n+3)*(n+4)

CROSSREFS

Essentially the same as A000498.

Sequence in context: A022718 A014472 A000498 * A015800 A276285 A232064

Adjacent sequences:  A066909 A066910 A066911 * A066913 A066914 A066915

KEYWORD

nonn

AUTHOR

Randall L. Rathbun, Jan 22 2002

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Jun 11 2002

STATUS

approved

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Last modified October 22 18:38 EDT 2018. Contains 316500 sequences. (Running on oeis4.)