OFFSET
1,1
COMMENTS
The terms of this sequence cannot be written as +-p^a +-q^b with p, q prime and a, b nonnegative integers for any possible choice of signs (cf. Theorem in Sun, 2000).
47867742232066880047611079 is a Brier number (A076335). - Jeppe Stig Nielsen, Sep 16 2020
LINKS
Fred Cohen and J. L. Selfridge, Not every number is the sum or difference of two prime powers, Math. Comp. 29 (1975), 79-81.
Zhi-Wei Sun, On integers not of the form +-p^a+-q^b, Proceedings of the American Mathematical Society, Vol. 128, No. 4 (2000), 997-1002.
FORMULA
a(n) = 66483034025018711639862527490*n + 47867742232066880047611079.
MATHEMATICA
Table[66483034025018711639862527490 n + 47867742232066880047611079, {n, 0, 7}] (* Michael De Vlieger, Feb 02 2017 *)
PROG
(PARI) a(n) = 66483034025018711639862527490*n+47867742232066880047611079
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Felix Fröhlich, Feb 01 2017
STATUS
approved