OFFSET
0,1
COMMENTS
Decimal expansion of maximal value of function alpha(n) = alpha-deviation from primality of number n = log_n(sigma(n)) - log_n(n+1) = log_n[sigma(n) / (n+1)] for n = 12, when alpha(12) = log_12(sigma(12)) - log_12(12+1) = log_12(28) - log_12(13) = log_12 (28/13) = 0,308766187…; alpha(p) = 0 for p = prime.
EXAMPLE
0,3087661875664928997884010546628878661481631771557148…
MATHEMATICA
RealDigits[Log[12, 28/13], 10, 120][[1]] (* Harvey P. Dale, Apr 17 2022 *)
PROG
(PARI) log(28/13)/log(12) \\ Michel Marcus, Dec 11 2014
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Jaroslav Krizek, Jan 03 2014
STATUS
approved