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A143190 a(n) is the smallest natural number we cannot obtain from n, n+1, n+2, n+3 and the operators +, -, *, /, using each number only once. 0
10, 29, 41, 43, 40, 44, 26, 21, 15, 15, 18, 18, 18, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

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 (in fact as soon as n>=15), the sequence tends to 5.

LINKS

Table of n, a(n) for n=1..50.

CROSSREFS

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

Sequence in context: A103423 A102542 A098751 * A009771 A068197 A079273

Adjacent sequences:  A143187 A143188 A143189 * A143191 A143192 A143193

KEYWORD

nonn

AUTHOR

Gilles A.Fleury, Oct 18 2008

STATUS

approved

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Last modified July 13 16:22 EDT 2020. Contains 335688 sequences. (Running on oeis4.)