  This is a companion note to ``Hochschild cohomology and Atiyah classes'' by
Damien Calaque and the author. Using elementary methods we compute the
Kontsevich weight of a wheel with spokes pointing outward. The result is in
terms of modified Bernouilli numbers. The same result had been obtained earlier
by Torossian (unpublished) and also recently by Thomas Willmacher using more
advanced methods.
