The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A001357 Powers of 2 written in base 9. (Formerly M1138 N0434) 3
 1, 2, 4, 8, 17, 35, 71, 152, 314, 628, 1357, 2725, 5551, 12212, 24424, 48848, 108807, 218715, 438531, 878162, 1867334, 3845668, 7802447, 16705005, 34511011, 70122022, 150244044, 310488088, 621087187, 1342185385, 2684381781, 5478773672, 12068657454, 24148426018 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 REFERENCES Archimedeans Problems Drive, Eureka, 14 (1951), 13. N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS Alois P. Heinz, Table of n, a(n) for n = 0..1000 (first 301 terms from T. D. Noe) MAPLE b:= proc(n) local m; m:= n; "";       while m>0 do irem(m, 9, 'm'), % od;       parse(cat(%))     end: a:= n-> b(2^n): seq(a(n), n=0..42);  # Alois P. Heinz, Aug 21 2019 MATHEMATICA Table[FromDigits[IntegerDigits[2^n, 9]], {n, 0, 30}] (* T. D. Noe, Jun 28 2012 *) PROG (PARI) {for(ixp=0, 34, casi = 2^ixp; cvst=0; while(casi != 0, cvd = casi%9; cvst=10*cvst + cvd + 1; casi = (casi - cvd) / 9 ); while(cvst !=0, ptch = cvst%10; print1(ptch-1); cvst = (cvst - ptch) / 10 ); print1(", "))} /* Douglas Latimer, Apr 23 2012 */ CROSSREFS Sequence in context: A018094 A293331 A309908 * A309462 A058520 A127680 Adjacent sequences:  A001354 A001355 A001356 * A001358 A001359 A001360 KEYWORD easy,base,nonn AUTHOR EXTENSIONS More terms from Douglas Latimer, Apr 16 2012 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 July 6 21:17 EDT 2022. Contains 355114 sequences. (Running on oeis4.)