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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A244474 4th-largest term in n-th row of Stern's diatomic triangle A002487. 2
2, 4, 10, 17, 29, 47, 79, 128, 208, 337, 546, 883, 1429, 2312, 3741, 6053, 9794, 15847, 25641, 41488, 67129 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

REFERENCES

J. Lansing, Largest Values for the Stern Sequence, J. Integer Seqs., 17 (2014), #14.7.5.

LINKS

Table of n, a(n) for n=3..23.

MAPLE

A002487 := proc(n, k)

    option remember;

    if k =0 then

        1;

    elif k = 2^n-1 then

        n+1 ;

    elif type(k, 'even') then

        procname(n-1, k/2) ;

    else

        procname(n-1, (k-1)/2)+procname(n-1, (k+1)/2) ;

    end if;

end proc:

A244474 := proc(n)

    {seq(A002487(n, k), k=0..2^n-1)} ;

    sort(%) ;

    op(-4, %) ;

end proc:

for n from 3 do

    print(A244474(n)) ;

od: # R. J. Mathar, Oct 25 2014

CROSSREFS

Cf. A002487, A244472-A244476.

Sequence in context: A077635 A125754 A097870 * A301739 A152231 A285939

Adjacent sequences:  A244471 A244472 A244473 * A244475 A244476 A244477

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jul 01 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 December 15 22:02 EST 2019. Contains 330012 sequences. (Running on oeis4.)