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A101253
a(n) = n-th prime of Erdős-Selfridge classification n+.
2
2, 19, 113, 617, 1877, 8753, 52517, 255043, 1532173, 9287521, 48499459, 353653063, 2136716521, 18171787987, 111795382441
OFFSET
1,1
COMMENTS
Diagonalization of the Erdős-Selfridge classification of primes n+. See A101231 for diagonalization of the Erdős-Selfridge classification of primes n-.
REFERENCES
R. K. Guy, Unsolved Problems in Number Theory, A18.
EXAMPLE
a(1) = 2 because 2 is the first element of A005105.
a(2) = 19 because 19 is the 2nd element of A005106.
a(3) = 113 because 113 is the 3rd element of A005107.
a(4) = 617 because 617 is the 4th element of A005108.
a(5) = 1877 because 1877 is the 5th element of A081633.
a(6) = 8753 because 8753 is the 6th element of A081634.
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Dec 16 2004
EXTENSIONS
More terms from David Wasserman, Mar 26 2008
STATUS
approved