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%I #12 Jan 03 2024 06:21:04
%S 45,44,43,42,41,40,39,38,37,36,90,89,88,87,86,85,84,83,82,81,80,79,78,
%T 77,76,75,74,73,72,135,134,133,132,131,130,129,128,127,126,125,124,
%U 123,122,121,120,119,118,117,116,115,114,113,112,111,110,109,108,180,179,178,177
%N Sequence is concatenation of S_1, S_2, S_3, ..., where S_k = [45k, 45k-1, 45k-2, ..., 45k-9k].
%C S_1 = [ 45,44,43,42,41,40,39,38,37,36 ],
%C S_2 = [ 90,89,88,87,86,87,..,74,73,72 ], ...
%H J. Mulder, <a href="/A137439/b137439.txt">Table of n, a(n) for n = 1..45550</a>
%t Array[Range[45#,36#,-1]&,5] (* _Paolo Xausa_, Jan 03 2024 *)
%K easy,nonn,less
%O 1,1
%A _Odimar Fabeny_, Apr 17 2008
%E Edited by _N. J. A. Sloane_, Apr 21 2008
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