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A269229
Decimal expansion of the sum of the alternating series of reciprocals of composite numbers.
5
1, 5, 1, 8, 6, 7, 7, 8, 8, 1, 2, 3, 0, 1
OFFSET
0,2
LINKS
Eric Weisstein's World of Mathematics, Prime Sums
Eric Weisstein's World of Mathematics, Prime Zeta Function
FORMULA
-Sum_{k>=1} (-1)^k/A002808(k) = 1/4 - 1/6 + 1/8 - 1/9 + 1/10 - 1/12 + ...
Equals 1 - A275712. - Jon E. Schoenfield, Nov 11 2016
EXAMPLE
0.15186778812301...
CROSSREFS
KEYWORD
nonn,cons,more
AUTHOR
Terry D. Grant, Jul 11 2016
EXTENSIONS
Corrected by Jon E. Schoenfield, Nov 05 2016
Several dubious programs deleted by N. J. A. Sloane, Nov 07 2016
a(12)-a(13) from Robert Price, Nov 14 2016
STATUS
approved