40663

Appears in sequences

• Base-8 Armstrong or narcissistic numbers, written in base 8.at n=14A010351
• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (natural numbers >= 3), t = (Lucas numbers).at n=15A024877
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of 2 n steps taken from {(-1, -1), (-1, 0), (1, -1), (1, 0), (1, 1)}.at n=5A151433
• a(n) = a(n-1) + 8*a(n-2) - 3*a(n-3) - 17*a(n-4) + a(n-5) + 13*a(n-6) + 4*a(n-7) - 6*a(n-8) - a(n-9).at n=13A173659
• a(n) = Sum_{k=1..n} (-1)^(k-1) * binomial(floor(n/k)+4,5).at n=19A366723