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Search: id:A015564
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A015564 Linear 2nd order recurrence. +0
1
0, 1, 7, 55, 427, 3319, 25795, 200479, 1558123, 12109735, 94116883, 731476591, 5685037435, 44184121591, 343399075747, 2668898259775, 20742682272907, 161212165468999, 1252941251920435, 9737861756257039, 75682679805321883 (list; graph; listen)
OFFSET

0,3

FORMULA

a(n) = 7 a(n-1) + 6 a(n-2).

CROSSREFS

Sequence in context: A062212 A121183 A069404 this_sequence A070997 A122372 A083068

Adjacent sequences: A015561 A015562 A015563 this_sequence A015565 A015566 A015567

KEYWORD

nonn,easy

AUTHOR

Olivier Gerard (ogerard(AT)ext.jussieu.fr)

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Last modified July 4 13:19 EDT 2008. Contains 140839 sequences.


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