|
%I #13 Apr 14 2023 14:21:19
%S 0,1,2,3,4,5,6,7,8,9,10,12,32,34,54,56,76,78,98,910,1210,1232,3432,
%T 3454,5654,5676,7876,7898,91098,9101210,12321210,12323432,34543432,
%U 34545654,56765654,56767876,78987876,789891098,910121091098,910121012321210,1232343212321210
%N Start with 0; to get next term reverse digits and add 1 to each digit (9's get replaced by 10's).
%C a(98) has 1014 digits. _Michael S. Branicky_, Apr 14 2023
%D Norman Sullivan, Test Your Own IQ, Workman Publishing Co. New York, NY, 1994, pp. 49, 51.
%H Michael S. Branicky, <a href="/A061729/b061729.txt">Table of n, a(n) for n = 0..97</a>
%e a(13) = 34 because the previous term was 32 and 32 reversed with 1 added to each digit is 34.
%o (Python)
%o from itertools import count, islice
%o def f(n): return int("".join(str(int(d)+1) for d in str(n)[::-1]))
%o def agen(): yield (an:=0); yield from (an:=f(an) for n in count(1))
%o print(list(islice(agen(), 41))) # _Michael S. Branicky_, Apr 14 2023
%Y Cf. A061728.
%K easy,nonn,base
%O 0,3
%A _Jason Earls_, May 06 2001
%E More terms from Larry Reeves (larryr(AT)acm.org), May 07 2001
%E a(39) and beyond from _Michael S. Branicky_, Apr 14 2023
|
