98797

Appears in sequences

• E.g.f.: ((1-x)/(1-2*x)) * exp(x*(1-x)/(1-2*x)).at n=6A059281
• Number of n X 3 0..1 arrays with no element equal to more than three of its king-move neighbors and with new values introduced in order 0 sequentially upwards.at n=9A281339
• a(n) is 2^n represented in bijective base-9 numeration.at n=16A309908