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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A076739 Number of compositions into Fibonacci numbers (1 counted as single Fibonacci number). 4
1, 1, 2, 4, 7, 14, 26, 49, 94, 177, 336, 637, 1206, 2288, 4335, 8216, 15574, 29515, 55943, 106030, 200959, 380889, 721906, 1368251, 2593291, 4915135, 9315811, 17656534, 33464955, 63427148, 120215370, 227847814, 431846824, 818492263 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

Contribution from Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 12 2008: (Start)

Equals right border of triangle A144172 and row sums with offset 1.

Equals INVERT transform of the characteristic function of the Fibonacci numbers starting with offset 1: (1, 1, 1, 0, 1,...), (if the first "1" is retained: = 1, 1, 2, 4, 7, 14,...). (End)

REFERENCES

A. Knopfmacher & N. Robbins, On binary and Fibonacci compositions, Annales Univ. Sci. Budapest, _Sect. Comp. 22 (2003) 193-206 [From Dr. Neville Robbins (nrobbins(AT)sfsu.edu), Mar 06 2010]

LINKS

T. D. Noe, Table of n, a(n) for n=0..300

FORMULA

G.f.: 1/(1-Sum_{k>1} x^Fibonacci(k)). - Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 20 2003

EXAMPLE

a(4) = 7 since 3+1 = 2+2 = 2+1+1 = 1+3 = 1+2+1 = 1+1+2 = 1+1+1+1.

CROSSREFS

Cf. A080888.

A144172, A010056 [From Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 12 2008]

Sequence in context: A097596 A054191 A079975 * A017996 A024502 A052535

Adjacent sequences:  A076736 A076737 A076738 * A076740 A076741 A076742

KEYWORD

nonn

AUTHOR

David W. Wilson, Jun 19, 2003

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 07:42 EST 2012. Contains 205717 sequences.