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Search: id:A047853
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| 1, 2, 10, 74, 586, 4682, 37450, 299594, 2396746, 19173962, 153391690, 1227133514, 9817068106, 78536544842, 628292358730, 5026338869834, 40210710958666, 321685687669322, 2573485501354570
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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(8^n + 6)/7. - Ralf Stephan, Feb 14 2004
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MAPLE
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a[0]:=0:a[1]:=1:for n from 2 to 50 do a[n]:=8*a[n-1]+1 od: seq(a[n]+1, n=0..18); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 20 2008
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CROSSREFS
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n-th difference of a(n), a(n-1), ..., a(0) is 7^(n-1) for n=1, 2, 3, ...
Sequence in context: A084844 A088189 A001395 this_sequence A141149 A046863 A000698
Adjacent sequences: A047850 A047851 A047852 this_sequence A047854 A047855 A047856
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu)
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