Mimura, Mamoru; Toda, Hirosi Homotopy groups of symplectic groups. (English) Zbl 0129.15405 J. Math. Kyoto Univ. 3, 251-273 (1964). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 14 Documents MSC: 55Qxx Homotopy groups Keywords:topology × Cite Format Result Cite Review PDF Full Text: DOI Online Encyclopedia of Integer Sequences: a(n) = (2*n + 1)! if n is even, a(n) = 2*(2*n + 1)! if n is odd.