

A034584


RadonHurwitz numbers: log_2 of dimension of an irreducible Rmodule for Clifford algebra Cl_n.


2



0, 1, 2, 2, 3, 3, 3, 3, 4, 5, 6, 6, 7, 7, 7, 7, 8, 9, 10, 10, 11, 11, 11, 11, 12, 13, 14, 14, 15, 15, 15, 15, 16, 17, 18, 18, 19, 19, 19, 19, 20, 21, 22, 22, 23, 23, 23, 23, 24, 25, 26, 26, 27, 27, 27, 27, 28, 29, 30, 30, 31, 31, 31, 31
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OFFSET

0,3


REFERENCES

H. Blaine Lawson, Jr. and M.L. Michelsohn, Spin Geometry, Princeton, p. 33.
Pertti Lounesto, Clifford Algebras and Spinors, Cambridge, 1997, p. 226.


LINKS

Table of n, a(n) for n=0..63.


FORMULA

a(n+8) = a(n) + 4, n >= 0, a(0) = 0, a(1) = 1, a(2)= a(3) = 2, a(4) = a(5) = a(6) = a(7) =3.
G.f.: x*(1+ x + x^3 + x^7)/((1  x)*(1  x^8)).  Wolfdieter Lang, Oct 03 2014


PROG

(PARI) concat(0, Vec(x*(1+ x + x^3 + x^7)/((1  x)*(1  x^8)) + O(x^80))) \\ Michel Marcus, Oct 03 2014


CROSSREFS

Cf. A003484, A034583A034586.
Sequence in context: A071860 A004788 A284523 * A035430 A167227 A048280
Adjacent sequences: A034581 A034582 A034583 * A034585 A034586 A034587


KEYWORD

nonn,easy


AUTHOR

N. J. A. Sloane.


STATUS

approved



