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Search: id:A051561
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A051561 Third unsigned column of triangle A051379. +0
1
0, 0, 1, 27, 539, 9850, 176554, 3197348, 59354028, 1137868848, 22614500016, 466814750688, 10015620672672, 223359393479040, 5175622796192640, 124533006364442880, 3109120944743427840, 80473740053567016960 (list; graph; listen)
OFFSET

0,4

REFERENCES

Mitrinovic, D. S. and Mitrinovic, R. S. see reference given for triangle A051379.

FORMULA

a(n) = A051379(n, 2)*(-1)^n; e.g.f.: ((ln(1-x))^2)/(2*(1-x)^8).

CROSSREFS

A049388 (m=0), A051560 (m=1) unsigned columns.

Sequence in context: A016887 A110896 A014928 this_sequence A061914 A076008 A099753

Adjacent sequences: A051558 A051559 A051560 this_sequence A051562 A051563 A051564

KEYWORD

easy,nonn

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de)

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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