4367947

Appears in sequences

• a(n) = a(n-2) + a(n-3) + a(n-4), with initial values a(0) = 0, a(1) = 2, a(2) = 3, a(3) = 6.at n=39A001634
• Number of maximal matchings in the n-prism graph.at n=19A284703