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A219735 a(n) = (a(n-2) * a(n-1))^2, with a(0) = 1 and a(1) = 2. 0
1, 2, 4, 64, 65536, 17592186044416, 1329227995784915872903807060280344576 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Every one of these numbers is a power of 2.
LINKS
FORMULA
a(n) = 2^A002605(n).
MATHEMATICA
RecurrenceTable[{a[0]==1, a[1]==2, a[n]==(a[n-1]*a[n-2])^2}, a, {n, 7}] (* Harvey P. Dale, Apr 23 2015 *)
CROSSREFS
Cf. A000079.
Sequence in context: A232444 A088079 A118993 * A279969 A361228 A018364
KEYWORD
nonn
AUTHOR
Dhilan Lahoti, Nov 26 2012
STATUS
approved

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Last modified July 18 18:59 EDT 2024. Contains 374388 sequences. (Running on oeis4.)