4340001

Appears in sequences

• Number of length n+7 0..2 arrays with at most one downstep in every 7 consecutive neighbor pairs.at n=13A255106
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + 2*b(n-1) + 2*b(n-2), where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=26A294560