|
| |
|
|
A109664
|
|
a(1) = 1; for n>1, a(n) = Sum_{i=1..n-1} a(i)*prime(i).
|
|
0
| |
|
|
1, 2, 8, 48, 384, 4608, 64512, 1161216, 23224320, 557383680, 16721510400, 535088332800, 20333356646400, 854000979148800, 37576043082547200, 1803650067962265600, 97397103669962342400, 5843826220197740544000
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
MATHEMATICA
| a[n_] := 1 /; n == 1 a[n_] := Sum[a[i]*Prime[i], {i, 1, n-1}] Table[a[i], {i, 1, 12}]
|
|
|
CROSSREFS
| Sequence in context: A177388 A124453 A000165 * A009812 A063075 A177386
Adjacent sequences: A109661 A109662 A109663 * A109665 A109666 A109667
|
|
|
KEYWORD
| easy,nonn
|
|
|
AUTHOR
| Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Aug 06 2005
|
|
|
EXTENSIONS
| More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 09 2005
|
| |
|
|
