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.

A278501 a(n) = A046523(A279336(n)).

Original entry on oeis.org

1, 2, 2, 2, 4, 6, 2, 4, 8, 6, 2, 6, 12, 6, 4, 8, 16, 6, 2, 12, 12, 6, 12, 6, 6, 4, 24, 6, 12, 30, 8, 16, 32, 6, 2, 6, 36, 12, 12, 6, 6, 12, 24, 30, 12, 6, 6, 6, 4, 24, 48, 12, 6, 12, 12, 30, 8, 24, 24, 6, 60, 6, 16, 32, 64, 6, 2, 30, 12, 6, 36, 30, 12, 12, 72, 6, 12, 6, 6, 30, 12, 24, 48, 6, 30, 12, 60, 6, 6, 6, 24, 60, 12, 6, 4, 6, 24, 48, 96, 12, 12, 6, 36
Offset: 1

Views

Author

Antti Karttunen, Dec 10 2016

Keywords

Links

Crossrefs

Cf. A046523, A279336, A278502.

Programs

Formula

a(n) = A046523(A279336(n)).

A279338 a(1) = 1, for n > 1, if A079559(n) = 0, a(n) = 2*a(A256992(n)), otherwise a(n) = A003961(a(A256992(n))).

Original entry on oeis.org

1, 2, 3, 5, 4, 6, 7, 9, 10, 15, 11, 8, 12, 14, 25, 21, 18, 35, 13, 20, 30, 27, 45, 22, 33, 49, 16, 24, 28, 50, 55, 75, 42, 77, 17, 36, 70, 63, 105, 26, 125, 175, 40, 60, 54, 39, 65, 90, 121, 81, 44, 66, 135, 99, 98, 147, 91, 32, 48, 56, 100, 110, 245, 165, 150, 143, 19, 84, 154, 225, 231, 34, 275, 385, 72, 140, 126, 51, 343, 210, 539, 189, 52
Offset: 1

Views

Author

Antti Karttunen, Dec 10 2016

Keywords

Comments

A more recursed variant of A279336.

Links

Crossrefs

Inverse: A279339.
Cf. A003961, A055938, A079559, A256992, A278502.
Related or similar permutations: A005940, A163511, A250246, A279336, A279341, A279343, A279348.

Programs

Formula

a(1) = 1; for n > 1, if A079559(n) = 0 [when n is a term of A055938], a(n) = 2*a(A256992(n)), otherwise a(n) = A003961(a(A256992(n))).
As a composition of other permutations:
a(n) = A163511(A279341(n)).
a(n) = A005940(1+A279343(n)).
a(n) = A250246(A279348(n)).

A279337 a(1) = 1, for n > 1, if n is even, a(n) = A055938(n/2), otherwise a(n) = A005187(a(A064989(n))).

Original entry on oeis.org

1, 2, 3, 5, 4, 6, 7, 9, 8, 12, 11, 13, 19, 14, 10, 17, 35, 20, 67, 21, 22, 24, 131, 27, 15, 28, 16, 29, 259, 30, 515, 33, 25, 36, 18, 37, 1027, 40, 46, 43, 2051, 44, 4099, 45, 23, 48, 8195, 51, 26, 52, 53, 55, 16387, 58, 41, 59, 70, 60, 32771, 61, 65539, 62, 39, 65, 47, 68, 131075, 69, 78, 72, 262147, 75, 524291, 76, 38, 77, 34, 80
Offset: 1

Views

Author

Antti Karttunen, Dec 10 2016

Keywords

Comments

For n > 1, a(n) = the number which is in the same position of array A256997 where n is located in array A246278.

Links

Crossrefs

Inverse: A279336.
Cf. A005187, A055938, A064989, A246278, A252752, A256997.
Cf. also A279339 (a variant).

Programs

Formula

a(1) = 1; for n > 1, if n is even, a(n) = A055938(n/2), otherwise a(n) = A005187(a(A064989(n))).
Other identities: For all n >= 2, a(n) = A256997(A252752(n)).
Showing 1-3 of 3 results.

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