89974

Appears in sequences

• a(n) = Sum_{a(k): k=0,1,2,...,n-4,n-2,n-1}; a(n-3) is not a summand; initial terms are 1,1,3.at n=19A049866
• Number of reversible string structures with n beads using exactly six different colors.at n=10A056330
• Number of primitive (aperiodic) reversible string structures with n beads using exactly six different colors.at n=10A056340