%I A082017
%S A082017 1,2,7,6,18
%N A082017 In the following square array, numbers (not occurring earlier) are entered 
               like this a(1,1),a(1,2),a(2,1),a(3,1),a(2,2),a(1,3),a(1,4),a(2,3),
               a(3,2),a(4,1),a(5,1),a(4,2),... such that the n-th diagonal sum is 
               a multiple of n. 1 2 7 6 18... 4 5 8 14... 3 9 12... 13 11... 10... 
               ... sequence contains the first row.
%Y A082017 Cf. A074135, A082018, A082019, A082020.
%Y A082017 Sequence in context: A117968 A154200 A089417 this_sequence A072985 A082187 
               A021365
%Y A082017 Adjacent sequences: A082014 A082015 A082016 this_sequence A082018 A082019 
               A082020
%K A082017 more,nonn,uned
%O A082017 1,2
%A A082017 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 05 2003
%E A082017 Needs editing - see A082002, A082003, A082004, A082005 for a model. - 
               N. J. A. Sloane (njas(AT)research.att.com).