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 A252892 Primes p such that sigma(p) = 1 + p is a partition number (sorted increasingly). 0
 2, 29, 41, 6841, 37337, 53173, 105557, 124753, 614153, 26543659, 541946239, 2841940499, 3519222691, 30388671977, 6622987708039, 3925922161489421, 1089657644424399781, 9147679068859117601, 13196258966925435701, 505499305314204629557, 2715220650772245313219 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Primes of the form p(k) - 1, where p(k) is a partition number (see A000040). Primes in A000065. Intersection of A000040 and A000065. Primes in A252891. Intersection of A000040 and A252891. LINKS EXAMPLE 41 is in the sequence because 41 is prime and the sum of divisors of 41 is 1 + 41 = 42 and 42 is the partition number of 10. PROG (PARI) lista() = {v = readvec("b000041.txt"); for (n=1, #v, if (isprime(p=v[n]-1), print1(p, ", ")); ); } \\ Michel Marcus, Dec 29 2014 CROSSREFS Cf. A000040, A000041, A000065, A000203, A052001, A252891. Sequence in context: A260792 A059700 A078329 * A256472 A105893 A059799 Adjacent sequences:  A252889 A252890 A252891 * A252893 A252894 A252895 KEYWORD nonn AUTHOR Omar E. Pol, Dec 24 2014 EXTENSIONS More terms from Michel Marcus, Dec 28 2014 Edited. - Wolfdieter Lang, Jan 14 2015 STATUS approved

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Last modified June 24 05:39 EDT 2019. Contains 324318 sequences. (Running on oeis4.)