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A153499
a(n) is the number whose binary expansion is A153500(n).
3
1, 5, 17, 85, 365, 1365, 5285, 21845, 88757, 349525, 1387157, 5592405, 22457045, 89478485, 357214805, 1431655765, 5732215637, 22906492245, 91581229397, 366503875925, 1466373418325, 5864062014805, 23453384746325, 93824992236885
OFFSET
1,2
COMMENTS
Empirical g.f. confirmed similar to A153497 and A153498. - Ray Chandler, Oct 15 2024
FORMULA
Empirical g.f.: -x*(64*x^6-80*x^5+16*x^4-20*x^3-6*x^2-1) / ((x-1)*(4*x-1)*(2*x^2+1)*(8*x^2+1)). - Colin Barker, Sep 17 2013
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Omar E. Pol, Dec 27 2008
EXTENSIONS
More terms from R. J. Mathar, Feb 20 2009
STATUS
approved