7845264902

Appears in sequences

• a(n) = 2*a(n-1) + 3*a(n-2), with a(0)=0, a(1)=1.at n=22A015518
• Numbers n such that A081249(m)/m^2 has a local maximum for m = n.at n=20A081251
• Numbers whose base-9 representation is 22222222.......2.at n=11A125857
• a(n) = 3*a(n-1) - a(n-3) + 3*a(n-4), starting with 1, 2, 6, 20.at n=21A132353
• a(n) = 3*a(n-1) - a(n-3) + 3*a(n-4), with initial values 1,3,7,20.at n=21A132868
• Moore lower bound on the order of a (10,g)-cage.at n=19A198310