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A374323
Decimal expansion of Sum_{k >= 1} A372822(k)/10^k.
2
1, 2, 3, 4, 5, 6, 7, 9, 0, 1, 2, 2, 3, 4, 5, 6, 7, 9, 0, 1, 2, 3, 4, 4, 5, 6, 7, 9, 0, 1, 2, 3, 4, 5, 6, 6, 7, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 9, 0, 1, 1, 2, 3, 4, 5, 6, 7, 9, 0, 1, 2, 3, 3, 4, 5, 6, 7, 9, 0, 1, 2, 3, 4, 5, 5, 6, 7, 9, 0, 1, 2
OFFSET
-1,2
LINKS
David H. Bailey and Jonathan M. Borwein, Experimental Mathematics: Examples, Methods and Implications, Notices of the American Mathematical Society, May 2005, Vol. 52, No. 5, p. 511.
Jonathan M. Borwein, The Experimental Mathematician: the Pleasure of Discovery and the Role of Proof, International Journal of Computers for Mathematical Learning, Vol. 10 (2005), p. 98.
FORMULA
Approximately 1/81, correct to 13 digits.
EXAMPLE
0.0123456790122345679012344567901234566790123456789012345679...
MATHEMATICA
First[RealDigits[Sum[Floor[k*Tanh[Pi/2]]/10^k, {k, 150}], 10, 100]]
CROSSREFS
Sequence in context: A228052 A308072 A084689 * A021085 A031006 A031978
KEYWORD
nonn,cons
AUTHOR
Paolo Xausa, Jul 04 2024
STATUS
approved