The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A099876 Decimal expansion of a nested radical: sqrt(1! + sqrt(2! + sqrt(3! + ... 12
 1, 8, 2, 7, 0, 1, 4, 7, 1, 7, 6, 0, 8, 5, 9, 2, 2, 2, 6, 3, 7, 3, 8, 4, 3, 1, 9, 2, 8, 5, 2, 8, 9, 2, 4, 7, 3, 7, 4, 7, 9, 3, 6, 2, 9, 6, 0, 8, 2, 5, 4, 8, 5, 4, 4, 2, 6, 1, 6, 2, 4, 6, 2, 9, 5, 6, 2, 1, 0, 0, 1, 5, 2, 3, 8, 7, 0, 9, 6, 7, 2, 7, 8, 3, 1, 0, 7, 2, 4, 4, 1, 6, 6, 1, 4, 3, 0, 5, 5, 5, 0 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Chai Wah Wu, Table of n, a(n) for n = 1..10000 Popular Computing (Calabasas, CA), The CSR Function, Vol. 4 (No. 34, Jan 1976), pages PC34-10 to PC34-11. Annotated and scanned copy. EXAMPLE 1.82701471760859222637384319285... MATHEMATICA RealDigits[Fold[Sqrt[#1 + #2] &, 0, Reverse[Range[100]!]], 10, 111][[1]] PROG (PARI) t=0:forstep(n=300, 1, -1, t=sqrt(t+n!)):print(t) gives more than enough correct digits for the number given here. CROSSREFS Cf. A072449, A099874. Sequence in context: A199158 A086089 A091350 * A153203 A261829 A244686 Adjacent sequences:  A099873 A099874 A099875 * A099877 A099878 A099879 KEYWORD cons,easy,nonn AUTHOR Mark Hudson (mrmarkhudson(AT)hotmail.com), Nov 02 2004 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 December 9 04:45 EST 2021. Contains 349626 sequences. (Running on oeis4.)