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A158607
Period 5: repeat 9,11,13,5,7.
0
9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7, 9, 11, 13, 5, 7
OFFSET
1,1
FORMULA
a(n) = A158606(2n-1) + A158606(2n).
G.f.: -x*(9+11*x+13*x^2+5*x^3+7*x^4)/((x-1)*(1+x+x^2+x^3+x^4)). - R. J. Mathar, Apr 08 2009
a(n) = 2*n+7-10*floor((n+1)/5). - Aaron J Grech, Aug 30 2024
CROSSREFS
Cf. A158606.
Sequence in context: A250295 A071217 A064930 * A070699 A065454 A334688
KEYWORD
nonn,easy
AUTHOR
Paul Curtz, Mar 22 2009
EXTENSIONS
Edited by R. J. Mathar, Apr 08 2009
STATUS
approved