101217

Appears in sequences

• Number of compositions of n where the difference between largest and smallest parts equals 8 and adjacent parts are unequal.at n=18A214277
• a(1) = a(2) = 1; a(n) = gcd(a(n-1), a(n-2)) + (a(n-1) + a(n-2))/gcd(a(n-1), a(n-2)).at n=38A355898