A143192 a(n) is the smallest natural number we cannot obtain from n, n+1, n+2, n+3, n+4, n+5, n+6, n+7 and the operators +, -, *, /, using each number only once.

1413, 7187, 12421, 22751, 28862, 48046, 36094, 46372, 54214, 72845, 88119, 107246, 125589, 104153, 43838, 45893, 55054, 62090, 66226, 70187, 69638, 74941, 85303, 81913, 68891, 77237, 37997, 48758, 42827, 45554, 22217, 26617, 29422, 29099

Offset: 0

Author

Gilles A.Fleury, Oct 18 2008, Mar 06 2009

Keywords

• nonn

Comments

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

Asymptotically the sequence tends to 67 (the first n for which a(n)=67 is n=1042).

Links

• Gilles A. Fleury, Table of n, a(n) for n = 0..1500

Crossrefs

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