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A217369
a(n) = (product of previous terms) * (sum of previous terms), with a(1)=1, a(2)=4.
0
1, 4, 20, 2000, 324000000, 16796264976000000000000
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..6.
EXAMPLE
a(3) = (1+4) * (1*4) = 5*4 = 20
CROSSREFS
Sequence in context:
A012841
A074195
A332867
*
A146342
A103896
A244955
Adjacent sequences:
A217366
A217367
A217368
*
A217370
A217371
A217372
KEYWORD
nonn
AUTHOR
Jon Perry
, Oct 01 2012
STATUS
approved
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Last modified August 31 00:13 EDT 2024. Contains 375550 sequences. (Running on oeis4.)