login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A240833 Sequence U(n) arising from analysis of structure of A046702. 3
1, 1, 1, 1, 1, 3, 1, 3, 1, 3, 3, 3, 3, 3, 5, 3, 5, 3, 7, 3, 7, 3, 7, 5, 7, 5, 7, 5, 9, 5, 9, 5, 9, 7, 9, 7, 9, 9, 9, 9, 9, 11, 9, 11, 9, 13, 9, 13, 9, 15, 9, 15, 9, 17, 9, 17, 9, 17, 11, 17, 11, 17, 11, 19, 11, 19, 11, 19, 13, 19, 13, 19, 13, 21, 13, 21, 13, 23, 13, 23, 13, 23, 15, 23, 15, 23, 17, 23, 17, 23, 17 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,6

REFERENCES

Callaghan, Joseph, John J. Chew III, and Stephen M. Tanny. "On the behavior of a family of meta-Fibonacci sequences." SIAM Journal on Discrete Mathematics 18.4 (2005): 794-824. See Eq. (3.1) and Table 3.1.

LINKS

Table of n, a(n) for n=2..92.

Index entries for Hofstadter-type sequences

MAPLE

#T_s, k(n) from Callaghan et al. Eq. (3.1).

s:=0; k:=3;

T:=proc(n) option remember; global R, U, s, k; # A046702

if n <= s+k then 1

else

    add(U(n-i), i=0..k-1);

fi; end;

U:=proc(n) option remember; global R, T, s, k; # A240833

T(R(n)); end;

R:=proc(n) option remember; global U, T, s, k; # A240834

n-s-T(n-1); end;

t1:=[seq(U(n), n=2..100)];

CROSSREFS

Cf. A046702, A240834.

Sequence in context: A163378 A025810 A001319 * A110919 A281273 A109599

Adjacent sequences:  A240830 A240831 A240832 * A240834 A240835 A240836

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 16 2014

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 30 12:21 EDT 2020. Contains 337439 sequences. (Running on oeis4.)