[seqfan] New formula for A030101 ?

Martin Møller Skarbiniks Pedersen martin at linux.com
Sun Mar 16 12:42:30 CET 2014


  It looks like the sequences A030101 and f(x) in Euler Problem 463 are the
same but I am
not sure.

  A030101: a(n) is the number produced when n is converted to base 2,
reversed and then converted back to base 10.

  Euler Problem 463:
    f(1)=1, f(3)=3, f(2n)=f(n), f(4n+1)=2f(2n+1)-f(n),
f(4n+3)=3f(2n+1)+2f(n)

Regards
Martin M. S. Pedersen



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