|
|
A051549
|
|
a(n) = LCM { sigma(1), ..., sigma(n) }.
|
|
1
|
|
|
1, 3, 12, 84, 84, 84, 168, 840, 10920, 32760, 32760, 32760, 32760, 32760, 32760, 1015560, 1015560, 1015560, 1015560, 1015560, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
LINKS
|
|
|
MATHEMATICA
|
nn=40; With[{sig=DivisorSigma[1, Range[nn]]}, Table[LCM@@Take[sig, n], {n, nn}]] (* Harvey P. Dale, Nov 15 2013 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|