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.

A350973 T(n,n-5), where T(*,*) is A350970.

Original entry on oeis.org

5, 61, 662, 7266, 83664, 1023120, 13335840, 185280480, 2739623040, 43018335360, 715588473600, 12579100934400, 233114750668800, 4543906893926400, 92958909332889600, 1991938519194624000, 44623477666639872000, 1043248655289544704000, 25411783120505413632000, 643930650271059959808000
Offset: 5

Views

Author

N. J. A. Sloane, Mar 06 2022

Keywords

References

  • A. Boutin, Query 2784, L'Intermédiaire des Mathématiciens, 11 (1904), 252-254.

Crossrefs

Cf. A350970.

A350974 T(n,n-7), where T(*,*) is A350970.

Original entry on oeis.org

61, 1385, 24568, 408360, 6749040, 113760240, 1979524800, 35773657920, 673354281600, 13216073270400, 270530842982400, 5773216280832000, 128349384991027200, 2969966735543808000, 71458612085532672000, 1785854823949228032000, 46308904323109908480000
Offset: 7

Views

Author

N. J. A. Sloane, Mar 06 2022

Keywords

References

  • A. Boutin, Query 2784, L'Intermédiaire des Mathématiciens, 11 (1904), 252-254.

Crossrefs

Cf. A350970.

A350975 T(n,n-8), where T(*,*) is A350970.

Original entry on oeis.org

272, 7936, 176896, 3610112, 71867136, 1436058624, 29228559360, 610801551360, 13163645214720, 293282162933760, 6763255299440640, 161506934017228800, 3993863950953676800, 102243157431032217600, 2708346162794220748800, 74189360770448110387200, 2100168597930370007040000
Offset: 8

Views

Author

N. J. A. Sloane, Mar 06 2022

Keywords

References

  • A. Boutin, Query 2784, L'Intermédiaire des Mathématiciens, 11 (1904), 252-254.

Crossrefs

Cf. A350970.

A350971 Expansion of e.g.f.: (sec(x)*tan(x))^2*(1+sin(x)).

Original entry on oeis.org

0, 0, 2, 6, 40, 180, 1232, 7266, 56320, 408360, 3610112, 30974526, 309836800, 3065784540, 34342971392, 384653685786, 4778192404480, 59724464976720, 815553380483072, 11249503075325046, 167586815066767360, 2527964965265232900, 40815105402865713152, 668249973079223076306, 11626293107260590653440, 205304046476194041001080
Offset: 0

Views

Author

N. J. A. Sloane, Mar 03 2022

Keywords

Comments

0, 0, followed by column 3 of A350970.

Crossrefs

Cf. A000111, A225689, A350970.

Formula

E.g.f.: (sec(x)*tan(x))^2*(1+sin(x)).
Showing 1-4 of 4 results.

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

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