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 1-2 of 2 results.

A100643 Numerator of Cotesian number C(n,1).

Original entry on oeis.org

1, 2, 3, 16, 25, 9, 3577, 2944, 15741, 26575, 4495513, 12504, 56280729661, 44436679, 29505985, 63813303296, 10004122565473, 6162434073, 965843331633293, 167791152125, 3181977977743649, 506778072148248857, 27256898762578419475451, 585293809045696
Offset: 1

Views

Author

N. J. A. Sloane, Dec 04 2004

Keywords

Examples

			1/2, 2/3, 3/8, 16/45, 25/96, 9/35, 3577/17280, 2944/14175, 15741/89600, 26575/149688, 4495513/29030400, 12504/79625, 56280729661/402361344000, 44436679/312741000, ... = A100623/A100624 = A002178/A002176 (the latter not being in lowest terms)

References

  • Charles Jordan, Calculus of Finite Differences, Chelsea 1965, p. 513.

Crossrefs

See A002176 for further references. A diagonal of A100640/A100641.

A100644 Denominator of Cotesian number C(n,1).

Original entry on oeis.org

2, 3, 8, 45, 96, 35, 17280, 14175, 89600, 149688, 29030400, 79625, 402361344000, 312741000, 229605376, 488462349375, 83691159552000, 50697046400, 8604790260498432, 1470076286679, 29967718809600000, 4694524604733600000, 269760174666625843200000, 5699209469078125
Offset: 1

Views

Author

N. J. A. Sloane, Dec 04 2004

Keywords

Examples

			1/2, 2/3, 3/8, 16/45, 25/96, 9/35, 3577/17280, 2944/14175, 15741/89600, 26575/149688, 4495513/29030400, 12504/79625, 56280729661/402361344000, 44436679/312741000, ... = A100623/A100624 = A002178/A002176 (the latter not being in lowest terms)

References

  • Charles Jordan, Calculus of Finite Differences, Chelsea 1965, p. 513.

Crossrefs

See A002176 for further references. A diagonal of A100640/A100641.
Showing 1-2 of 2 results.

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

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