
COMMENTS

w is uniquely defined as the largest value such that for all n>0, a(n) is prime.  Charles R Greathouse IV, Oct 25 2006
Wright's paper uses this as an example, although the sequence is not welldefined there. The next term is probably 2^1638235411, a 4932digit prp.  Charles R Greathouse IV, Oct 25 2006 [Update March 2019: Samuel S. Wagstaff, Jr proves the primality of a(4), see the Baillie link for details.  Charles R Greathouse IV, Mar 27 2019]


LINKS

Table of n, a(n) for n=0..3.
Robert Baillie, Wright's Fourth Prime, arXiv:1705.09741 [math.NT], 2017.
Aminu Alhaji Ibrahim and Sa’idu Isah Abubaka, Aunu Integer Sequence as NonAssociative Structure and Their Graph Theoretic Properties, Advances in Pure Mathematics, 2016, 6, 409419.
Simon Plouffe, The calculation of p(n) and pi(n), arXiv:2002.12137 [math.NT], 2020.
Paulo Ribenboim, Prime number records, TwoYear College Math. Jnl., 25 (1994), pp. 280290.
Juan L. Varona, A Couple of Transcendental PrimeRepresenting Constants, arXiv:2012.11750 [math.NT], 2020.
E. M. Wright, A primerepresenting function, Amer. Math. Monthly, 58 (1951), 616618.
