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 1-4 of 4 results.

A109101 Numbers n such that n! is the product of exactly 3 smaller factorials (greater than 1).

Original entry on oeis.org

576, 1152, 2304, 2880, 3456, 4608, 5760, 6912, 9216, 11520, 18432, 20736, 23040, 36864, 41472, 46080, 73728, 92160
Offset: 1

Views

Author

Jud McCranie, Jun 19 2005

Keywords

Crossrefs

Cf. A034878, A001013, A003135, A058295, A075082, A109095, A109096, A109097, A109098, A109099, A109100, A109102, A109103.

A109102 Numbers n such that n! is the product of exactly 4 smaller factorials (greater than 1).

Original entry on oeis.org

13824, 17280, 27648, 34560, 55296, 82944
Offset: 1

Views

Author

Jud McCranie, Jun 19 2005

Keywords

Crossrefs

Cf. A034878, A001013, A003135, A058295, A075082, A109095, A109096, A109097, A109098, A109099, A109100, A109101, A109103.

A109103 Smallest a(n) such that a(n)! can be expressed as the product of smaller factorials, using n distinct factorials greater than 1 (with repetitions allowed).

Original entry on oeis.org

4, 9, 288, 34560
Offset: 2

Views

Author

Jud McCranie, Jun 19 2005

Keywords

Examples

			34560! = 2! * 3! * 4! * 5! * 34559!, using five different factorials, so a(5)=34560.

Crossrefs

Cf. A034878, A001013, A003135, A058295, A075082, A109095, A109096, A109097, A109098, A109099, A109100, A109101, A109102.

A109104 Numbers n such that n! can be expressed as the product of the factorials of prime numbers, repetitions allowed.

Original entry on oeis.org

4, 6, 8, 9, 10, 12, 24, 32, 48, 72, 128, 192, 240, 384, 432, 480, 720, 864, 1152, 1440, 2592, 2880, 5040, 6144, 6912, 8192, 10080, 11520, 15360, 15552, 23040, 25920, 27648, 51840, 62208, 69120, 73728, 86400
Offset: 1

Views

Author

Jud McCranie, Jun 19 2005

Keywords

Examples

			10! = 3! * 5! * 7!, so 10 is in the sequence.

Crossrefs

Cf. A034878, A001013, A003135, A058295, A075082, A109095, A109096, A109097, A109098, A109099, A109100, A109101, A109102, A109103.
Showing 1-4 of 4 results.

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

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