A060316 a(n) is the smallest natural number we cannot obtain from n, n+1, n+2, n+3, n+4, n+5 and the operators +, -, *, /, using each number only once.

76, 284, 433, 734, 842, 1102, 1228, 1366, 1652, 709, 859, 879, 943, 1070, 1091, 749, 829, 530, 628, 653, 677, 202, 342, 293, 248, 238, 247, 245, 253, 336, 251, 147, 125, 155, 127, 163, 139, 133, 149, 181, 157, 153, 155, 169, 162, 157, 131, 174, 176, 169

Offset: 0

Author

Jean-Marc Rebert, Mar 28 2001

Keywords

• nonn

Comments

Asymptotically the sequence tends to 13. The first n for which a(n) equals the limit is n=83. - Gilles A.Fleury, Oct 18 2008

Examples

			u(0)=76 is the smallest natural number we can't obtain with 0, 1, 2, 3, 4, 5 and the operators +, -, *, /, using each number only once.
		

Links

• Gilles A. Fleury, Table of n, a(n) for n = 0..100, Oct 18 2008.
• Gilles Bannay, Countdown Problem
• Index entries for similar sequences

Crossrefs

Cf. A060315, A141494.

Extensions

More terms from Koksal Karakus (karakusk(AT)hotmail.com), May 28 2002