Sequence of Even Poulet Numbers
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Sequence
The sequence of even Poulet numbers begins:
- $161 \, 038, 215 \, 326, 2 \, 568 \, 226, 3 \, 020 \, 626, 7 \, 866 \, 046, 9 \, 115 \, 426, 49 \, 699 \, 666, \ldots$
This sequence is A006935 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).
Also defined as
Some sources include $2$ in this list, but as a Poulet number is usually presupposed on $\mathsf{Pr} \infty \mathsf{fWiki}$ to be composite, this has not been declared so here.
Historical Note
The $1$st even Poulet number was discovered by Derrick Henry Lehmer in $1949$.
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $161,038$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $161,038$