cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-4 of 4 results.

A143191 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.

Original entry on oeis.org

284, 1413, 2113, 3266, 4943, 6242, 9105, 11586, 6269, 6427, 8407, 8406, 9224, 11079, 12451, 8392, 3469, 4253, 4043, 4126, 4087, 4657, 4330, 4639, 5114, 3983, 5839, 4415, 6376, 4537, 5231, 5161, 4090, 3199, 2057, 3372, 2285, 2270, 2525, 2609, 2590, 1209
Offset: 0

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Author

Gilles A.Fleury, Oct 18 2008

Keywords

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 29 (the first n for which a(n)=29 is n=249).

Links

Crossrefs

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

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.

Original entry on oeis.org

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

Views

Author

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

Keywords

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

Crossrefs

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

A143193 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, n+8 and the operators +, -, *, /, using each number only once.

Original entry on oeis.org

7187, 38103, 54251, 114358, 168673, 264111, 319699, 456061, 588847, 812092, 1005321, 1222630, 445059, 499063, 600907, 706847, 820609, 929113, 1048137, 1269847, 1049291, 1113439, 1252843, 1411942, 1588841, 456206, 462382, 464357, 479894
Offset: 1

Views

Author

Gilles A.Fleury, Oct 18 2008

Keywords

Comments

This sequence is related to the sequences A071110 (for 5 successive integers) and A060316 (for 6 successive integers).
What is the asymptotic value of this sequence? What is the first n for which a(n) equals the asymptotic value?

Links

Crossrefs

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

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.

Original entry on oeis.org

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
Offset: 1

Views

Author

Gilles A.Fleury, Oct 18 2008

Keywords

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.

Crossrefs

Cf. A071110, A060316, A071107, A060315, A141494, A142153.
Showing 1-4 of 4 results.

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