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A137173
A006516 at positions with even indices, A007582 at positions with odd indices.
2
0, 1, 1, 3, 6, 10, 28, 36, 120, 136, 496, 528, 2016, 2080, 8128, 8256, 32640, 32896, 130816, 131328, 523776, 524800, 2096128, 2098176, 8386560, 8390656, 33550336, 33558528, 134209536, 134225920, 536854528, 536887296, 2147450880, 2147516416
OFFSET
0,4
FORMULA
a(2n)=A006516(n). a(2n+1)=A007582(n).
a(2n)+a(2n+1) = A000302(n). a(2n+1)-a(2n)=A000079(n).
G.f.: -x*(-1-x+3*x^2) / ( (2*x+1)*(2*x-1)*(2*x^2-1) ). - R. J. Mathar, Nov 22 2018
CROSSREFS
Sequence in context: A302094 A068818 A068866 * A116544 A110891 A197435
KEYWORD
nonn,easy
AUTHOR
Paul Curtz, May 11 2008
EXTENSIONS
Edited by R. J. Mathar, Jul 16 2008
STATUS
approved