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Prime Bell numbers (A000110).
3

%I #18 Nov 02 2019 03:22:48

%S 2,5,877,27644437,35742549198872617291353508656626642567,

%T 359334085968622831041960188598043661065388726959079837

%N Prime Bell numbers (A000110).

%H E. T. Bell, <a href="http://www.jstor.org/stable/2300300">Exponential numbers</a>, Amer. Math. Monthly, 41 (1934), 411-419.

%H The Prime Database, <a href="https://primes.utm.edu/primes/page.php?id=68825">Bell(2841)</a>, the next term which is too large to include here.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BellNumber.html">Bell Number</a>

%e Bell(2)=2 and Bell(3)=5 are primes, Bell(4)..Bell(6) are composite, Bell(7)=877 is prime.

%Y Cf. A000110, A051130.

%K nonn

%O 1,1

%A _Ignacio Larrosa CaƱestro_