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 1-3 of 3 results.

A179979 Fixed points of permutations A108971, A179977, and A179978.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 27, 28, 29, 47, 48, 49, 67, 68, 69, 87, 88, 89, 178, 196, 205, 223, 242, 260, 265, 266, 281, 378, 396, 405, 423, 442, 460, 465, 466, 481, 578, 596, 605, 623, 642, 660, 665, 666, 681, 778, 796, 805, 823, 842, 860, 865, 866, 881, 978, 996
Offset: 1

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Author

Reinhard Zumkeller, Aug 04 2010

Keywords

Comments

a(n) = A108971(a(n)) = A179977(a(n)) = A179978(a(n)).

A108971 Lexicographically earliest sequence such that in decimal representation sums of digits of consecutive terms differ exactly by 1 or -1.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 17, 16, 15, 14, 13, 12, 11, 10, 20, 21, 22, 23, 24, 25, 26, 18, 19, 27, 28, 29, 37, 36, 35, 34, 33, 32, 31, 30, 40, 41, 42, 43, 44, 45, 46, 38, 39, 47, 48, 49, 57, 56, 55, 54, 53, 52, 51, 50, 60, 61, 62, 63, 64, 65, 66, 58, 59, 67, 68, 69, 77, 76, 75
Offset: 1

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Author

Reinhard Zumkeller, Jul 27 2005

Keywords

Comments

Permutation of the natural numbers with inverse A179977; A179978(n)=a(a(n)); A179979 gives fixed points: a(A179979(n))=A179979(n).
abs(A007953(a(n+1)) - A007953(a(n))) = 1.
A179987(n)=A007953(a(n)); A007953(a(A179988(n)))=n; a(A179988(n))=A051885(n+1). - Reinhard Zumkeller, Aug 09 2010, Jul 10 2011

Links

Extensions

Comment corrected and extended by Reinhard Zumkeller, Aug 04 2010

A179978 A108971(A108971(n)).

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 22, 23, 24, 25, 26, 18, 19, 20, 21, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 42, 43, 44, 45, 46, 38, 39, 40, 41, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 62, 63, 64, 65, 66, 58, 59, 60, 61, 67, 68, 69, 70, 71, 72
Offset: 1

Views

Author

Reinhard Zumkeller, Aug 04 2010

Keywords

Comments

a(A179979(n)) = A179979(n);
A108971(n) = a(A179977(n)) = A179977(a(n)).
Showing 1-3 of 3 results.

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