Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A111438
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A111438 Fibonacci(heptanacci(n)), restricted to nonzero heptanacci numbers. +0
1
1, 1, 1, 3, 21, 987, 2178309, 10610209857723, 155576970220531065681649693, 33449372971981195681356806732944396691005381570580873 (list; graph; listen)
OFFSET

0,4

FORMULA

a(n) = A000045(A066178(n)).

EXAMPLE

a(0) = Fibonacci(heptanacci(0)) = A000045(A066178(0)) = A000045(1) = 1.

a(1) = Fibonacci(heptanacci(1)) = A000045(A066178(1)) = A000045(1) = 1.

a(2) = Fibonacci(heptanacci(2)) = A000045(A066178(2)) = A000045(2) = 1.

a(3) = Fibonacci(heptanacci(3)) = A000045(A066178(3)) = A000045(4) = 3.

a(4) = Fibonacci(heptanacci(4)) = A000045(A066178(4)) = A000045(8) = 21.

a(5) = Fibonacci(heptanacci(5)) = A000045(A066178(5)) = A000045(16) = 987.

a(6) = A000045(A066178(6)) = A000045(32) = 2178309.

a(7) = A000045(A066178(7)) = A000045(64) = 10610209857723.

a(8) = A000045(A066178(8)) = A000045(127) = 155576970220531065681649693.

CROSSREFS

Cf. A000045, A001592, A066178, A007570.

Sequence in context: A127104 A111433 A111435 this_sequence A058635 A077260 A012110

Adjacent sequences: A111435 A111436 A111437 this_sequence A111439 A111440 A111441

KEYWORD

easy,nonn

AUTHOR

Jonathan Vos Post (jvospost3(AT)gmail.com), Nov 14 2005

EXTENSIONS

Corrected by T. D. Noe (noe(AT)sspectra.com), Nov 16 2006

page 1

Search completed in 0.003 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 30 22:12 EST 2008. Contains 150989 sequences.


AT&T Labs Research