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A248680
Decimal expansion of r = sum{[n/3]!/[n/2]!, n = 0..infinity} and [ ] = floor.
3
6, 2, 0, 7, 2, 4, 8, 0, 5, 2, 6, 7, 5, 5, 8, 6, 2, 0, 5, 4, 2, 5, 0, 0, 8, 5, 5, 6, 0, 7, 7, 0, 3, 7, 8, 1, 6, 8, 0, 5, 3, 1, 8, 2, 2, 0, 7, 2, 4, 3, 7, 7, 9, 5, 6, 4, 9, 0, 0, 7, 6, 8, 3, 3, 4, 6, 2, 2, 7, 0, 2, 3, 0, 0, 2, 2, 5, 9, 0, 2, 4, 4, 9, 9, 0, 9
OFFSET
1,1
LINKS
EXAMPLE
r = 6.207248052675586205425008556077037816805318220...
MATHEMATICA
x = N[Sum[Floor[n/3]!/Floor[n/2]!, {n, 0, 400}], 120]
RealDigits[x][[1]] (* A248680 *)
PROG
(PARI) suminf(n=0, (n\3)!/(n\2)!) \\ Michel Marcus, Oct 17 2014
CROSSREFS
Sequence in context: A087199 A153735 A295188 * A021621 A197844 A326825
KEYWORD
nonn,easy,cons
AUTHOR
Clark Kimberling, Oct 11 2014
STATUS
approved