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A094359
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Pair reversal of a Jacobsthal sequence.
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4
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0, 1, 2, 2, 10, 6, 42, 22, 170, 86, 682, 342, 2730, 1366, 10922, 5462, 43690, 21846, 174762, 87382, 699050, 349526, 2796202, 1398102, 11184810, 5592406, 44739242, 22369622, 178956970, 89478486, 715827882, 357913942, 2863311530, 1431655766
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| Pair reversal of A078008.
a(n+1)-2*a(n) = A000918(n) signed. - Paul Curtz, Jun 29 2008
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index to sequences with linear recurrences with constant coefficients, signature (-1,4,4)
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FORMULA
| a(n) = 5*2^n/12-2(-1)^n/3+(-2)^n/4.
G.f.: x*(1+3*x)/((1+x)*(1-4*x^2)).
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PROG
| (MAGMA) [5*2^n/12-2*(-1)^n/3+(-2)^n/4: n in [0..35]]; // Vincenzo Librandi, Aug 12 2011
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CROSSREFS
| Cf. A084183, A094360.
Sequence in context: A083457 A163808 A127058 * A129898 A135996 A141610
Adjacent sequences: A094356 A094357 A094358 * A094360 A094361 A094362
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KEYWORD
| easy,nonn
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AUTHOR
| Paul Barry (pbarry(AT)wit.ie), Apr 26 2004
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