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A161181 A117805/3 0
1, 2, 10, 290, 252010, 190526868290, 108901462620994495704010, 35578585682975584013618831758290462042094536290, 3797507277602505611886017656109365392377072888898472983341161302567287339676755374368286356010 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

a(0)=1, a(n)=a(n-1)*(3*a(n-1)-1)

MATHEMATICA

NestList[#(3#-1)&, 1, 10]  (* From Harvey P. Dale, Apr 1 2011 *)

CROSSREFS

Sequence in context: A171873 A098706 A143249 * A073834 A111837 A092123

Adjacent sequences:  A161178 A161179 A161180 * A161182 A161183 A161184

KEYWORD

easy,nonn

AUTHOR

David Applegate (david(AT)research.att.com), Jun 05 2009

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Last modified February 16 14:07 EST 2012. Contains 205930 sequences.