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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; 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

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 (deutsch(AT)duke.poly.edu), Mar 07 2007

CROSSREFS

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

Sequence in context: A180608 A077921 A097076 * A129794 A064503 A050482

Adjacent sequences:  A003605 A003606 A003607 * A003609 A003610 A003611

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein

EXTENSIONS

Corrected by Nick Hobson, Feb 21 2007

More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 07 2007

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Last modified February 14 20:10 EST 2012. Contains 205663 sequences.