%I A061577
%S A061577 2,3,7,12,18,26,35,45,56,69,83,98,114,131,150,170,191,213,236,260,285,
%T A061577 312,340,369,399,430,462,495,529,565,602,640,679,719,760,802,845,889,
%U A061577 935,982,1030,1079,1129,1180,1232,1285,1339,1394,1451,1509,1568,1628
%N A061577 Sequence and first differences (A061578) include all numbers.
%C A061577 The lexicographically earliest sequence that begins with 2 and together 
               with its first differences (A030124) contain every positive integer 
               exactly once.
%Y A061577 Cf. A005228, A061578.
%Y A061577 Sequence in context: A128458 A066733 A049623 this_sequence A006488 A121430 
               A023606
%Y A061577 Adjacent sequences: A061574 A061575 A061576 this_sequence A061578 A061579 
               A061580
%K A061577 nonn,easy
%O A061577 1,1
%A A061577 Ronald van Eijck (eequalsmcsquare(AT)hotmail.com), May 21 2001
%E A061577 More terms from Larry Reeves (larryr(AT)acm.org), Jun 12 2001