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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

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Last modified September 24 15:40 EDT 2021. Contains 347643 sequences. (Running on oeis4.)