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 1-6 of 6 results.

A179779 Position of zeros in A179776. Complement of A179777.

Original entry on oeis.org

3, 4, 5, 7, 8, 9, 11, 12, 13, 14, 16, 18, 19, 20, 21, 23, 24, 26, 27, 28, 29, 30, 32, 36, 37, 38, 40, 44, 45, 46, 48, 52, 53, 54, 56, 58, 59, 60, 61, 63, 66, 67, 68, 69, 70, 72, 73, 74, 75, 76, 77, 78, 81, 82, 83, 85, 86, 87, 88, 90, 91, 93, 95, 96, 97, 98, 100, 102, 104
Offset: 1

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Author

Antti Karttunen, Aug 03 2010

Keywords

Comments

Probably finite, no more terms after a(108)=163 exist.

Links

Crossrefs

Cf. A179777, and also A179774, A179834.

A179834 Position of zeros in A179831. Complement of A179832.

Original entry on oeis.org

1, 2, 3, 4, 6, 7, 10, 11, 12, 14, 17, 18, 19, 22, 23, 24, 26, 27, 28, 30, 31, 32, 34, 35, 36, 37, 38, 39, 42, 43, 44, 45, 46, 47, 50, 51, 52, 53, 54, 57, 58, 59, 60, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 78, 80, 81, 85, 86, 87, 88, 89, 91, 94, 95, 96, 97
Offset: 1

Views

Author

Antti Karttunen, Aug 03 2010

Keywords

Comments

Probably finite, no more terms after a(119)=164 exist.

Links

Crossrefs

Cf. A179832, and also A179774, A179779.

A179771 Quadrisection of the fourth central column of triangle A122242, a(n) = A179770(4*n).

Original entry on oeis.org

1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0
Offset: 1

Views

Author

Antti Karttunen, Aug 03 2010

Keywords

Comments

Conjecture: the last zero (107th) occurs at n=166, after which only ones occur.

Links

Crossrefs

Cf. A179772-A179774, and also A179776, A179831.

Formula

a(n) = A179770(4*n).

A179772 Position of ones in A179771.

Original entry on oeis.org

1, 2, 7, 8, 9, 13, 15, 20, 21, 24, 26, 27, 30, 31, 36, 38, 39, 47, 52, 56, 61, 63, 64, 65, 68, 69, 71, 73, 76, 81, 83, 84, 88, 93, 95, 96, 97, 101, 103, 105, 106, 110, 112, 114, 120, 125, 130, 137, 142, 144, 145, 146, 150, 152, 157, 158, 160, 161, 165, 167, 168
Offset: 1

Views

Author

Antti Karttunen, Aug 03 2010

Keywords

Comments

This seems to give the positions where "L"'s occur in the central column of A122242 (please zoom into the illustration given here). Conjecture, from a(60)=167 onward, all integers >= 167 present.

Links

Crossrefs

Cf. A179773-A179774, and also A179777, A179832.

A179770 The fourth central column of triangle A122242, i.e., A179761(4), A179761(11), A179761(20), A179761(31), ...

Original entry on oeis.org

0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0
Offset: 1

Views

Author

Antti Karttunen, Aug 03 2010

Keywords

Links

Crossrefs

Cf. A179771-A179774, and also A179775, A179830.

Formula

a(n) = A179761(A028875(n+2)).

A179773 First differences of A179772.

Original entry on oeis.org

1, 5, 1, 1, 4, 2, 5, 1, 3, 2, 1, 3, 1, 5, 2, 1, 8, 5, 4, 5, 2, 1, 1, 3, 1, 2, 2, 3, 5, 2, 1, 4, 5, 2, 1, 1, 4, 2, 2, 1, 4, 2, 2, 6, 5, 5, 7, 5, 2, 1, 1, 4, 2, 5, 1, 2, 1, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
Offset: 1

Views

Author

Antti Karttunen, Aug 03 2010

Keywords

Links

Crossrefs

Cf. A179774, and also A179778, A179833.

Formula

a(n) = A179772(n+1)-A179772(n).
Showing 1-6 of 6 results.

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