login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A086105 Adding, multiplying and exponentiating cycle of the previous two terms similar to A039941. 0
0, 1, 1, 1, 1, 2, 2, 4, 6, 24, 4738381338321616896, 4738381338321616920, 22452257707354557353808363243511480320 (list; graph; refs; listen; history; internal format)
OFFSET

1,6

FORMULA

a(1)=0, a(2)=1, a(n): if n mod 3 is 0: a(n)=a(n-2) + a(n-1), if n mod 3 is 1: a(n)=a(n-2) * a(n-1), if n mod 3 is 2: a(n)=a(n-2)^a(n-1).

EXAMPLE

a(11) = a(9)^a(10)=6^24 because 11 mod 3 is 2.

CROSSREFS

Cf. A039941.

Sequence in context: A080611 A171421 A072707 * A084701 A113815 A110946

Adjacent sequences:  A086102 A086103 A086104 * A086106 A086107 A086108

KEYWORD

easy,nonn

AUTHOR

Anthony Peterson (civ2buf(AT)ricochet.com), Jul 09 2003

EXTENSIONS

The next 2 terms are (6^24)^((6^24)*(6^24+24)) and (6^24)^((6^24) * (6^24 + 24)) + (6^24) * (6^24 + 24).

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 19:15 EST 2012. Contains 205852 sequences.