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Search: id:A119944
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A119944 First differences of A003418(n)= LCM(1,2,..,n). +0
1
0, 1, 4, 6, 48, 0, 360, 420, 1680, 0, 25200, 0, 332640, 0, 0, 360360, 11531520, 0, 220540320, 0, 0, 0, 5121436320, 0, 21416915520, 0, 53542288800, 0, 2248776129600, 0, 69872686884000, 72201776446800, 0, 0, 0 (list; graph; listen)
OFFSET

0,3

COMMENT

a(n)=0 iff n=0 or n = n(k)=A080765(k),k>=1.

FORMULA

a(n)= A003418(n+1)-A003418(n), n>=0. A003418(0):=1.

CROSSREFS

Sequence in context: A077100 A012935 A013166 this_sequence A134592 A165658 A066348

Adjacent sequences: A119941 A119942 A119943 this_sequence A119945 A119946 A119947

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Jul 20 2006

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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