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 1-10 of 12 results. Next

A107821 Indices of primes occurring in A107801.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

a(n) = pi(A107801(n)).

A107833 Indices of primes occurring in A107813.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

A107833(n)=pi(A107813(n))

A107822 Indices of primes occurring in A107802.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

A107822(n)=pi(A107802(n))

A107823 Indices of primes occurring in A107803.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

A107823(n)=pi(A107803(n))

A107824 Indices of primes occurring in A107804.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

A107824(n)=pi(A107804(n))

A107826 Indices of primes occurring in A107806.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

A107826(n)=pi(A107806(n))

A107827 Indices of primes occurring in A107807.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

A107827(n)=pi(A107807(n))

A107828 Indices of primes occurring in A107808.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

A107828(n)=pi(A107808(n))

A107829 Indices of primes occurring in A107809.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

A107829(n) = pi(A107809(n)).

A107830 Indices of primes occurring in A107810.

Original entry on oeis.org

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

Views

Author

Zak Seidov, May 24 2005

Keywords

Crossrefs

Formula

A107830(n)=pi(A107810(n))
Showing 1-10 of 12 results. Next