%I #7 Oct 13 2013 20:21:20

%S 284,1413,2113,3266,4943,6242,9105,11586,6269,6427,8407,8406,9224,

%T 11079,12451,8392,3469,4253,4043,4126,4087,4657,4330,4639,5114,3983,

%U 5839,4415,6376,4537,5231,5161,4090,3199,2057,3372,2285,2270,2525,2609,2590,1209

%N a(n) is the smallest natural number we cannot obtain from n, n+1, n+2, n+3, n+4, n+5, n+6 and the operators +, -, *, /, using each number only once.

%C This sequence is related to the sequences A071110 (for 5 successive integers) and A060316 (for 6 successive integers) and others sequences to come...

%C Asymptotically, the sequence tends to 29 (the first n for which a(n)=29 is n=249).

%H Gilles A. Fleury, <a href="/A143191/b143191.txt">Table of n, a(n) for n=0..300</a>

%Y Cf. A071110, A060316, A071107, A060315, A141494, A142153.

%K nonn

%O 0,1

%A _Gilles A.Fleury_, Oct 18 2008