Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #6 Oct 29 2017 14:42:20
%S 12345,67891,1112,13141,51617,18192,2122,23242,52627,28293,3132,33343,
%T 53637,38394,4142,43444,54647,48495,5152,53545,55657,58596,6162,63646,
%U 56667,68697,7172,73747,57677,78798,8182,83848,58687,88899,9192,93949
%N Natural numbers written out with their digits grouped in sets of 5 (leading zeros omitted).
%H Harvey P. Dale, <a href="/A091341/b091341.txt">Table of n, a(n) for n = 1..10000</a>
%t FromDigits/@Partition[IntegerDigits/@Range[100]//Flatten,5] (* _Harvey P. Dale_, Oct 29 2017 *)
%K base,easy,nonn
%O 1,1
%A J. Taylor (integersfan(AT)yahoo.com), Mar 01 2004