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 1-5 of 5 results.

A005291 Representation degeneracies for boson strings.

Original entry on oeis.org

1, 0, 1, 0, 2, 1, 4, 3, 8, 7, 15, 15, 28, 30, 51, 58, 92, 108, 163, 196, 285, 348, 490, 605, 833, 1034, 1396, 1740, 2313, 2887, 3789, 4730, 6141, 7661, 9853, 12276, 15664, 19477, 24678, 30621, 38558, 47728, 59767, 73795, 91949, 113239, 140452
Offset: 1

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Keywords

Comments

This gives the number of vector ([1]) irreducible representations in the n-th excited state of an oscillator model of bosons. A005290 counts the scalar ([0]) representations, A005292 the rank-2 tensor representations ([2]). - R. J. Mathar, Nov 30 2010
a(2)..a(12) coincide with A182712(n-1). - Omar E. Pol, Feb 07 2012

References

  • N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Programs

Extensions

More terms from Sean A. Irvine, Apr 30 2016

A005292 Representation degeneracies for boson strings.

Original entry on oeis.org

1, 0, 2, 1, 3, 3, 7, 6, 14, 15, 26, 31, 51, 60, 95, 116, 171, 215, 308, 385, 541, 683, 932, 1183, 1591, 2012, 2673, 3381, 4429, 5599, 7266, 9150, 11781, 14802, 18898, 23683, 30044, 37516, 47321, 58913, 73889, 91716, 114480, 141629, 176010
Offset: 2

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Author

Keywords

References

  • N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Programs

Extensions

More terms from Sean A. Irvine, Apr 30 2016

A005293 Representation degeneracies for boson strings.

Original entry on oeis.org

1, 0, 2, 2, 4, 4, 10, 10, 19, 23, 38, 47, 75, 92, 140, 179, 257, 329, 466, 595, 821, 1055, 1426, 1828, 2442, 3117, 4112, 5244, 6836, 8685, 11236, 14215, 18240, 23006, 29307, 36824, 46636, 58368, 73504, 91689, 114859, 142764, 178039, 220521, 273813
Offset: 3

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Author

Keywords

References

  • N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Programs

Extensions

More terms from Sean A. Irvine, Apr 30 2016

A005294 Representation degeneracies for boson strings.

Original entry on oeis.org

1, 0, 2, 2, 5, 5, 11, 13, 24, 29, 48, 61, 96, 122, 182, 236, 339, 440, 617, 800, 1099, 1422, 1920, 2479, 3302, 4244, 5587, 7157, 9327, 11894, 15370, 19516, 25030, 31648, 40312, 50763, 64273, 80604, 101496, 126796, 158857, 197708, 246563, 305758
Offset: 4

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Author

Keywords

References

  • N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Programs

Extensions

More terms from Sean A. Irvine, Apr 30 2016

A259965 Triangle read by rows: representation degeneracies of bosonic strings.

Original entry on oeis.org

1, -1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 2, 0, 1, 0, 2, 1, 2, 0, 1, 2, 1, 3, 2, 2, 0, 1, 0, 4, 3, 4, 2, 2, 0, 1, 3, 3, 7, 4, 5, 2, 2, 0, 1, 1, 8, 6, 10, 5, 5, 2, 2, 0, 1, 5, 7, 14, 10, 11, 6, 5, 2, 2, 0, 1, 2, 15, 15, 19, 13, 12, 6, 5, 2, 2, 0, 1, 10, 15, 26, 23, 24, 14, 13, 6, 5, 2, 2, 0, 1, 5, 28, 31, 38, 29, 27, 15, 13, 6, 5, 2, 2, 0, 1, 16, 30, 51, 47, 48, 34, 28, 16, 13, 6, 5, 2, 2, 0, 1
Offset: 0

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Author

N. J. A. Sloane, Jul 11 2015

Keywords

Examples

			Triangle begins:
1,
-1,1,
0,0,1,
0,1,0,1,
1,0,2,0,1,
0,2,1,2,0,1,
2,1,3,2,2,0,1,
0,4,3,4,2,2,0,1,
3,3,7,4,5,2,2,0,1,
1,8,6,10,5,5,2,2,0,1,
5,7,14,10,11,6,5,2,2,0,1,
2,15,15,19,13,12,6,5,2,2,0,1,
10,15,26,23,24,14,13,6,5,2,2,0,1,
5,28,31,38,29,27,15,13,6,5,2,2,0,1,
16,30,51,47,48,34,28,16,13,6,5,2,2,0,1,
...
		

References

  • T. L. Curtright and C. B. Thorn, Symmetry patterns in the mass spectra of dual string models, Nuclear Phys. B 274 (1986), 520-588. See Table 6b.

Crossrefs

The leading columns are A005290, A005291, A005292, A005293, A005294.
Showing 1-5 of 5 results.