OFFSET
1,2
COMMENTS
This constant is irrational (Mingarelli, 2013).
LINKS
Angelo B. Mingarelli, Abstract factorials, Notes on Number Theory and Discrete Mathematics, Vol. 19, No. 4 (2013), pp. 43-76 (see p. 62); arXiv preprint, arXiv:0705.4299 [math.NT], 2007-2012.
EXAMPLE
1.59187412193012501124162959809216085908566842858464...
MATHEMATICA
RealDigits[Sum[1/Product[Prime[k]^Floor[n/k], {k, 1, n}], {n, 0, 50}], 10, 100][[1]]
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Amiram Eldar, Jul 02 2021
STATUS
approved