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.

A005781 Erroneous version of A273867.

Original entry on oeis.org

2, 5, 6, 8, 9, 11
Offset: 1

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A005795 Degrees of fundamental invariants of Weyl group W(E_7).

Original entry on oeis.org

2, 6, 8, 10, 12, 14, 18
Offset: 1

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Crossrefs

A005796 Degrees of fundamental invariants of Weyl group W(E_8).

Original entry on oeis.org

2, 8, 12, 14, 18, 20, 24, 30
Offset: 1

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Comments

a(n) - 1 is the n-th number < 30 that is relatively prime to 30. [Jonathan Sondow, Apr 16 2009]

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Formula

a(n) = Prime(n+2) + 1, for n = 2, 3, ..., 8. [Jonathan Sondow, Apr 16 2009]
Showing 1-3 of 3 results.