login
This site is supported by donations to The OEIS Foundation.

 

Logo

"Email this user" was broken Aug 14 to 9am Aug 16. If you sent someone a message in this period, please send it again.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A003608 Add 4, then reverse digits.
(Formerly M3339)
5
0, 4, 8, 21, 52, 65, 96, 1, 5, 9, 31, 53, 75, 97, 101, 501, 505, 905, 909, 319, 323, 723, 727, 137, 141, 541, 545, 945, 949, 359, 363, 763, 767, 177, 181, 581, 585, 985, 989, 399, 304, 803, 708, 217, 122, 621, 526, 35, 93, 79, 38, 24, 82, 68, 27, 13, 71, 57, 16, 2, 6, 1, 5, 9, 31, 53, 75, 97, 101, 501, 505 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

J. Roberts, Lure of the Integers, Math. Assoc. America, 1992, p. 15.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=0..70.

Nick Hobson, Python program for this sequence

FORMULA

Has period 54.

MAPLE

rev:=proc(n) local nn, nnn: nn:=convert(n, base, 10): add(nn[nops(nn)+1-j]*10^(j-1), j=1..nops(nn)) end: a[0]:=0: for n from 1 to 70 do a[n]:=rev(a[n-1]+4) od: seq(a[n], n=0..70); # Emeric Deutsch, Mar 07 2007

MATHEMATICA

NestList[FromDigits[Reverse[IntegerDigits[#+4]]]&, 0, 70] (* Harvey P. Dale, Jan 20 2014 *)

CROSSREFS

All of A003608, A016081, A016082 (and possibly others) eventually reach the trajectory of 1 shown in A119031. Cf. A055198.

Sequence in context: A261031 A077921 A097076 * A248423 A129794 A064503

Adjacent sequences:  A003605 A003606 A003607 * A003609 A003610 A003611

KEYWORD

nonn,base,changed

AUTHOR

N. J. A. Sloane, Mira Bernstein

EXTENSIONS

Corrected by Nick Hobson, Feb 21 2007

More terms from Emeric Deutsch, Mar 07 2007

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified August 19 07:12 EDT 2017. Contains 290794 sequences.