The OEIS is supported by the many generous donors to the OEIS 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 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A175422 Sequence of resulting numbers after 3rd step of iteration defined in A175419. 8
 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 4, 9, 6, 25, 36, 1, 1, 1, 0, 1, 8, 6561, 1, 25, 216, 1, 8, 1, 0, 1, 6, 1, 1, 1, 1, 1, 1, 1, 0, 1, 8, 1, 1, 867361737988403547205962240695953369140625, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS EXAMPLE For n = 33: a(33) = 6561 because for the number 33 there are 4 steps of defined iteration: {3^3 = 27}, {7^2 = 49}, {9^4 = 6561}, {((1^6)^5)^6 = 1} and the 3rd step of the iteration ends with 6561. MAPLE A175420 := proc(n) option remember; local dgs, a, i ; if n = 0 then return 0 ; end if; dgs := convert(n, base, 10) ; a := op(1, dgs) ; for i from 2 to nops(dgs) do a := a^ op(i, dgs) ; end do: a ; end proc: A175421 := proc(n) A175420(A175420(n)) ; end proc: A175422 := proc(n) A175420(A175421(n)) ; end proc: for n from 0 do printf("%d, \n", A175422(n)) ; end do; # R. J. Mathar, May 12 2010 CROSSREFS Cf. A175419, A175420, A175421, A175423, A175424, A175425, A175426, A175427. Sequence in context: A179636 A217657 A175419 * A175423 A175421 A175420 Adjacent sequences: A175419 A175420 A175421 * A175423 A175424 A175425 KEYWORD nonn,base AUTHOR Jaroslav Krizek, May 09 2010 EXTENSIONS 7 more terms from R. J. Mathar, May 12 2010 STATUS approved

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

Last modified December 5 02:30 EST 2022. Contains 358572 sequences. (Running on oeis4.)