Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the
OEIS Foundation home page.
J. Riordan, An Introduction to Combinatorial Analysis, Wiley, 1958, p. 159.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Table of n, a(n) for n=1..8.
Sequence in context: A317862 A318551 A318213 * A305603 A297069 A090237
Adjacent sequences: A001572 A001573 A001574 * A001576 A001577 A001578
N. J. A. Sloane.