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A006159 a(n)=a(a(n-4))+a(n-a(n-4)).
(Formerly M0454)
+0
1
1, 1, 1, 1, 2, 3, 4, 5, 5, 5, 5, 6, 7, 7, 7, 8, 9, 9, 10, 11, 11, 12, 12, 12, 12, 13, 13, 14, 15, 16, 16, 16, 16, 17, 18, 19, 19, 20, 20, 21, 22, 23, 23, 23, 24, 24, 24, 24, 24, 25, 25, 26, 27, 27, 28, 29 (list; graph; listen)
OFFSET

1,5

REFERENCES

J. Arkin, D. C. Arney, L. S. Dewald and W. E. Ebel, Jr., Families of recursive sequences, J. Rec. Math., 22 (No. 22, 1990), 85-94.

CROSSREFS

Sequence in context: A087829 A078474 A087177 this_sequence A081610 A063273 A007599

Adjacent sequences: A006156 A006157 A006158 this_sequence A006160 A006161 A006162

KEYWORD

nonn

AUTHOR

njas

page 1

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Last modified July 19 08:04 EDT 2008. Contains 142098 sequences.


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