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Search: id:A063401
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A063401 a(n)=a(n-1)*a(n-2)*a(n-3) with a(0)=1, a(1)=1, a(2)=2. +0
3
1, 2, 2, 4, 16, 128, 8192, 16777216, 17592186044416, 2417851639229258349412352, 713623846352979940529142984724747568191373312, 30354201441027016733116592294117482916287606860189680019559568902170379456331382784 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n) =2^A000073(n).

EXAMPLE

a(6)=128*16*4=8192.

CROSSREFS

Cf. A000301, A000308.

Adjacent sequences: A063398 A063399 A063400 this_sequence A063402 A063403 A063404

Sequence in context: A032318 A090753 A091788 this_sequence A129614 A070283 A070282

KEYWORD

nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Jul 16 2001

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.


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