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A267184 Row 4 of the square array in A267181. 0
1, 4, 2, 5, 0, 5, 3, 6, 1, 6, 4, 7, 2, 7, 5, 8, 3, 8, 6, 9, 4, 9, 7, 10, 5, 10, 8, 11, 6, 11, 9, 12, 7, 12, 10, 13, 8, 13, 11, 14, 9, 14, 12, 15, 10, 15, 13, 16, 11, 16, 14, 17, 12, 17, 15, 18, 13, 18, 16, 19, 14, 19, 17, 20, 15, 20, 18, 21, 16, 21, 19, 22, 17, 22, 20, 23, 18, 23, 21, 24, 19 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..80.

FORMULA

Conjectures from Colin Barker, Jan 29 2016: (Start)

a(n) = a(n-1)+a(n-4)-a(n-5) for n>5.

G.f.: (1+3*x-2*x^2+3*x^3-6*x^4+2*x^5) / ((1-x)^2*(1+x)*(1+x^2)).

(End)

CROSSREFS

Cf. A267181.

Sequence in context: A348640 A094099 A107046 * A275927 A072907 A250719

Adjacent sequences:  A267181 A267182 A267183 * A267185 A267186 A267187

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 17 2016

STATUS

approved

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Last modified January 26 11:22 EST 2022. Contains 350598 sequences. (Running on oeis4.)