25729

Appears in sequences

• Number of different compact source directed animals with 1 point on the bottom line.at n=10A036908
• Expansion of (1+2*x)/((1+x)*(1-x^2-x^3)).at n=38A098601
• Apocalypse primes: 10^665+a(n) has 666 decimal digits and is prime.at n=15A115983
• a(n) = a(n-1) + a(n-2) + 2 a([n/2]), where a(0) = 1, a(1) = 1, a(2) = 1.at n=19A298346