In more detail, I have difficulty reconciling
A033507 with A005178
A033508 with A003775
A033509 with A028468
A033510 with A028469
A033511 with A028470 R.
On Sat, 14 Nov 2009, Richard Guy wrote:
> A033507 seems to be an erroneous version of A005178. R.
>
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