Si

a?*(.r'-i- 2*) . . . (a?' + 2n — 2 ) A/i — 1 Ao = i,

a7(a?>-f-i*)(a?*-+-3*)... (a?*-H2/i — I ) **« ~ , o Q ^^ ^ . ' Bo = x;

on a

Art-f- - A„i-h - . - A„«î-i-... = (2w-f-i)--^, 224 ^

B„-h i Brt-i-h i . -B«2 4-... = (2/H-2)-^^.

2 îi 4 a?

Par exemple, en faisant n = 2, on trouve

a7(a?»-hi«)(ar«-4-3») £ a?(a?«-f-in . r^ (a?«-f-2«)(ar«-f-4») 1.2.3.4*5 2 1.2.3 2.4 ~ 1.2.3.4.5*6

(J. W. L. Glaisher, N. C, 472.) {Radicke, 79, 247.)