This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A287936 Numerator of moments of Rvachëv function up(x). 4
 1, 1, 19, 583, 132809, 46840699, 4068990560161, 1204567303451311, 4146897304424408411, 18814360006695807527868793, 21431473463327429953796293981397, 911368783375270623395381542054690099, 3805483535214088799368825731508632105336401423 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS a(n)/A287937(n) is equal to the integral of t^(2n) * up(t), the moment of the Rvachëv function. The Rvachëv function is related to the Fabius function; up(x)=F(x+1) for |x|<1 and up(x)=0 for |x|>=1, where F is the Fabius function. LINKS J. Arias de Reyna, An infinitely differentiable function with compact support:Definition and properties, arXiv:1702.05442 [math.CA], 2017. J. Arias de Reyna, Arithmetic of the Fabius function, arXiv:1702.06487 [math.NT], 2017. FORMULA Recurrence c(0)=1, c(n)=Sum_{k=0..n-1}(binomial(2n+1,2k) c_k)/((2n+1)*(2^(2n)-1)), where c(n)=a(n)/A287937(n). MATHEMATICA c[0] = 1; c[n_] := c[n] =    Sum[Binomial[2 n + 1, 2 k] c[k], {k, 0, n - 1}]/((2 n + 1) (2^(2 n) - 1)); Table[Numerator[c[n]], {n, 0, 30}] CROSSREFS Cf. A287937, A287938. Sequence in context: A284111 A142023 A075879 * A226584 A180841 A266052 Adjacent sequences:  A287933 A287934 A287935 * A287937 A287938 A287939 KEYWORD nonn,frac AUTHOR Juan Arias-de-Reyna, Jun 03 2017 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 23 23:51 EDT 2019. Contains 328379 sequences. (Running on oeis4.)