Search: id:A116468
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%I A116468
%S A116468 2,3,1,6,4,7,5,10,8,11,9,14,12,15,13,18,16,19,17,22,20,23,21,24,26,27,
%T A116468 25,30,28,31,29,34,32,35,33,38,36,39,37,42,40,41,43,46,44,47,45,50,48,
%U A116468 51,49,54,52,55,53,58,56,59,57,62,60,63,61,66,64,67,65
%N A116468 Permutation of natural numbers generated by 2-rowed array shown below.
%C A116468 2 3 6 7 10 11 14 15 ...a(n)=congruent to 2 or 3 mod 4
%C A116468 1 4 5 8 9 12 13 16 ...a(n)=congruent to 0 or 1 mod 4
%D A116468 M. Cerasoli, F. Eugeni and M. Protasi, Elementi di Matematica Discreta, 
               Bologna 1988
%D A116468 Emanuele Munarini and Norma Zagaglia Salvi, Matematica Discreta,UTET, 
               CittaStudiEdizioni, Milano 1997
%F A116468 For n>2, a(n+4k) = a(n) + 4k, with k>=1.
%Y A116468 Cf. A090964.
%Y A116468 Sequence in context: A166295 A016730 A114576 this_sequence A110237 A076631 
               A035485
%Y A116468 Adjacent sequences: A116465 A116466 A116467 this_sequence A116469 A116470 
               A116471
%K A116468 easy,nonn
%O A116468 1,1
%A A116468 Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Mar 17 2006

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