This site is supported by donations to The OEIS Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A070881 Least k such that A070868(k) = n. 0
 1, 3, 6, 8, 13, 15, 19, 26, 28, 32, 34, 47, 49, 53, 57, 59, 73, 80, 82, 88, 92, 104, 109, 123, 125, 127, 135, 139, 143, 147, 168, 193, 182, 184, 188, 194, 196, 204, 208, 214, 257, 250, 259, 261, 263, 269, 277, 275, 287, 309, 305, 313, 315, 352, 366, 375, 362 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS MATHEMATICA a[1] = a[2] = 1; a[n_] := a[n] = a[a[n - 1]] + a[n + 1 - 2*a[n - 1]]; b = Table[0, {100}]; Do[c = a[n]; If[c < 101 && b[[c]] == 0, b[[c]] = n], {n, 1, 10^3}]; b CROSSREFS Cf. A070868. Sequence in context: A072107 A084578 A190493 * A046669 A046670 A131383 Adjacent sequences:  A070878 A070879 A070880 * A070882 A070883 A070884 KEYWORD easy,nonn AUTHOR Robert G. Wilson v, May 20 2002 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 January 16 13:32 EST 2019. Contains 319193 sequences. (Running on oeis4.)