A232218 Arises from color-symmetrized counting of tensor invariants.

1, 2, 4, 12, 27, 103, 391, 1383, 6260, 32704, 149045, 812696, 5034682, 27895385, 173642918, 1221049609, 7859267162, 54735567331, 426299653269, 3100614554854, 23801458978807, 202181105885405, 1629802507466471, 13634143960693703, 124940706768934047

Offset: 1

Author

N. J. A. Sloane, Nov 22 2013

Keywords

• nonn

Comments

See Geloun-Ramgoolam (2013), Section 5.2 and Appendix B for precise definition and Mathematica code.

Links

• Hiroaki Yamanouchi, Table of n, a(n) for n = 1..60
• J. B. Geloun, S. Ramgoolam, Counting Tensor Model Observables and Branched Covers of the 2-Sphere, arXiv preprint arXiv:1307.6490, 2013
• Geloun, Joseph Ben; Ramgoolam, Sanjaye Tensor models, Kronecker coefficients and permutation centralizer algebras. J. High Energy Phys. 2017, No. 11, Paper No. 92, 75 p. (2017).

Extensions

a(14)-a(25) from Hiroaki Yamanouchi, Mar 13 2015