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A033134 Base 7 digits are, in order, the first n terms of the periodic sequence with initial period 1,1,0. 0
1, 8, 56, 393, 2752, 19264, 134849, 943944, 6607608, 46253257, 323772800, 2266409600, 15864867201, 111054070408, 777378492856, 5441649449993, 38091546149952, 266640823049664, 1866485761347649 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..19.

Index to sequences with linear recurrences with constant coefficients, signature (7,0,1,-7).

FORMULA

a(n) = 7a(n-1) + a(n-3) - 7a(n-4)

CROSSREFS

Sequence in context: A170641 A170689 A003950 * A126985 A182430 A027081

Adjacent sequences:  A033131 A033132 A033133 * A033135 A033136 A033137

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified June 20 05:15 EDT 2013. Contains 226418 sequences.