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 1-7 of 7 results.

A353110 Binary representation of A000422(n).

Original entry on oeis.org

1, 10101, 101000001, 1000011100001, 1101010000110001, 10011111101111110001, 11101001100101110110001, 101001110010111111110110001, 111010110111100110100010110001, 1010001110111010100100110010110001
Offset: 1

Views

Author

Seiichi Manyama, Apr 24 2022

Keywords

Crossrefs

Cf. A000422, A353111, A353112, A353113, A353114, A353115, A353116, A353117.
Cf. A007088, A050926.

Programs

  • Ruby
    def A(k, n)
  (1..n).map{|i| (1..i).to_a.reverse.join.to_i.to_s(k).to_i}
end
p A(2, 10)

Formula

a(n) = A007088(A000422(n)).

A353111 Base-3 representation of A000422(n).

Original entry on oeis.org

1, 210, 102220, 12221001, 2202111220, 1020020120010, 112101212202101, 20002221022010100, 2112211110001000200, 1001100202012200011001, 10221012122122021102212210, 120212211002121222001110211020, 2100201122222221220212010020220201
Offset: 1

Views

Author

Seiichi Manyama, Apr 24 2022

Keywords

Crossrefs

Cf. A000422, A353110, A353112, A353113, A353114, A353115, A353116, A353117.
Cf. A007089, A097580.

Programs

  • Ruby
    def A(k, n)
  (1..n).map{|i| (1..i).to_a.reverse.join.to_i.to_s(k).to_i}
end
p A(3, 20)

Formula

a(n) = A007089(A000422(n)).

A353112 Base-4 representation of A000422(n).

Original entry on oeis.org

1, 111, 11001, 1003201, 31100301, 2133233301, 131030232301, 11032113332301, 322313212202301, 22032322210302301, 100022230001210102301, 123202121121121130102301, 232213121102313132210102301, 1032130122202213111001210102301
Offset: 1

Views

Author

Seiichi Manyama, Apr 24 2022

Keywords

Crossrefs

Cf. A000422, A353110, A353111, A353113, A353114, A353115, A353116, A353117.
Cf. A007090, A353104.

Programs

  • Ruby
    def A(k, n)
  (1..n).map{|i| (1..i).to_a.reverse.join.to_i.to_s(k).to_i}
end
p A(4, 20)

Formula

a(n) = A007090(A000422(n)).

A353113 Base-5 representation of A000422(n).

Original entry on oeis.org

1, 41, 2241, 114241, 3214241, 131414241, 3424414241, 134414414241, 4010314414241, 140000314414241, 121200300314414241, 111333240300314414241, 102224302240300314414241, 43323231102240300314414241, 40130121131102240300314414241
Offset: 1

Views

Author

Seiichi Manyama, Apr 24 2022

Keywords

Crossrefs

Cf. A000422, A353110, A353111, A353112, A353114, A353115, A353116, A353117.
Cf. A007091, A353105.

Programs

  • Ruby
    def A(k, n)
  (1..n).map{|i| (1..i).to_a.reverse.join.to_i.to_s(k).to_i}
end
p A(5, 20)

Formula

a(n) = A007091(A000422(n)).

A353114 Base-6 representation of A000422(n).

Original entry on oeis.org

1, 33, 1253, 32001, 1055253, 22005133, 432020401, 12410423013, 242000505413, 5014143322001, 2210214121042333, 1105325341502010053, 333110135101300035201, 144230053432212010304453, 51542110115212012113433133
Offset: 1

Views

Author

Seiichi Manyama, Apr 24 2022

Keywords

Crossrefs

Cf. A000422, A353110, A353111, A353112, A353113, A353115, A353116, A353117.
Cf. A007092, A353106.

Programs

  • Ruby
    def A(k, n)
  (1..n).map{|i| (1..i).to_a.reverse.join.to_i.to_s(k).to_i}
end
p A(6, 20)

Formula

a(n) = A007092(A000422(n)).

A353116 Base-8 representation of A000422(n).

Original entry on oeis.org

1, 25, 501, 10341, 152061, 2375761, 35145661, 516277661, 7267464261, 121672446261, 20125401442261, 3342313131342261, 564731226736442261, 116343242472501442261, 20325073566675147442261, 3327107422474572347442261
Offset: 1

Views

Author

Seiichi Manyama, Apr 24 2022

Keywords

Crossrefs

Cf. A000422, A353110, A353111, A353112, A353113, A353114, A353115, A353117.
Cf. A007094, A097583.

Programs

  • Ruby
    def A(k, n)
  (1..n).map{|i| (1..i).to_a.reverse.join.to_i.to_s(k).to_i}
end
p A(8, 20)

Formula

a(n) = A007094(A000422(n)).

A353117 Base-9 representation of A000422(n).

Original entry on oeis.org

1, 23, 386, 5831, 82456, 1206503, 15355671, 202838110, 2484401020, 31322180131, 3835578242783, 525732558043736, 70648887825106821, 10365384555277543376, 1340704717754261643863, 173544168713353406577421
Offset: 1

Views

Author

Seiichi Manyama, Apr 24 2022

Keywords

Crossrefs

Cf. A000422, A353110, A353111, A353112, A353113, A353114, A353115, A353116.
Cf. A007095, A353107.

Programs

  • Ruby
    def A(k, n)
  (1..n).map{|i| (1..i).to_a.reverse.join.to_i.to_s(k).to_i}
end
p A(9, 20)

Formula

a(n) = A007095(A000422(n)).
Showing 1-7 of 7 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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