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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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
a(3) = (1+4) * (1*4) = 5*4 = 20
CROSSREFS
Sequence in context: A012841 A074195 A332867 * A146342 A103896 A244955
KEYWORD
nonn
AUTHOR
Jon Perry, Oct 01 2012
STATUS
approved

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Last modified July 16 15:42 EDT 2024. Contains 374353 sequences. (Running on oeis4.)