1,2
Table of n, a(n) for n=1..13.
Eric Weisstein's World of Mathematics, C-Matrix
Cf. A086260, A086262.
Sequence in context: A277928 A232423 A074031 * A111978 A146558 A025600
Adjacent sequences: A086258 A086259 A086260 * A086262 A086263 A086264
nonn,more
Eric W. Weisstein, Jul 14 2003
a(9)-a(13) from Martin Ehrenstein, Oct 07 2021
approved