[Bell #s Generalized: e^e^..^(e^x-1)]
Christian G. Bower
bowerc at usa.net
Fri Jul 25 20:05:32 CEST 2003
Leroy Quet <qqquet at mindspring.com> wrote:
> It seems like I have heard of this before. And the idea is obvious.
> But the next-highest-order sequence above the standard Bell numbers is
> not in the on-line Encyclopedia of Integer Sequences, IF I have
> calculated the first few terms correctly (by hand).
...
> By the way, {B(3,k)} to start:
>
> 1, 1, 2, 6, 23, 106,...
>
> Am I even right about any of this?
> (If not, this would explain why {B(3,k)} is not in the EIS.)
I get
B(2,k) A000110
B(3,k) A000258
B(4,k) A000307
B(5,k) A000357
B(6,k) A000405
B(7,k) A001669
B(8,k) A081624
B(9,k) A081629
I don't know what happened in the calculation.
I at least expect that B(n,2)=n which is not the case for your
calculation.
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