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%I #9 Jun 05 2023 14:03:26
%S 0,7,14,811,1588,8121515,1589812812,812151615891589,
%T 158981281381215168121516,812151615891581015898128131589812813,
%U 15898128138121516812158781215161589158108121516158915810
%N a(0) = 0; a(n) is obtained by incrementing each digit of a(n-1) by 7.
%C In A061511-A061522, A061746-A061750 when the incremented digit exceeds 9 it is written as a 2-digit string. So 9+1 becomes the 2-digit string 10, etc.
%H Indranil Ghosh, <a href="/A061522/b061522.txt">Table of n, a(n) for n = 0..16</a>
%e In the sequence 1588 follows 811 because 8+7 = 15 and 1+7 = 8. - _Indranil Ghosh_, Feb 09 2017
%t NestList[FromDigits[Flatten[IntegerDigits/@(IntegerDigits[#]+7)]]&,0,10] (* _Harvey P. Dale_, Jun 05 2023 *)
%K base,nonn
%O 0,2
%A _Amarnath Murthy_, May 08 2001
%E More terms from Larry Reeves (larryr(AT)acm.org), May 11 2001
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