45072

Appears in sequences

• Number of paraffins (see Losanitsch reference for precise definition).at n=23A006010
• Numbers k such that (k*(k+1)*(k+2)) / (k+(k+1)+(k+2)) is a palindrome.at n=18A032789
• a(n) = a(n-1) - A004001(n)*a(n-2), a(1) = 1, a(2) = 1.at n=14A135687
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 0), (0, 1, -1), (1, -1, -1), (1, 0, 1)}.at n=10A148774
• E.g.f. satisfies: A'(x) = 1 + 4*A(x) + A(x)^2, where A(0)=0.at n=6A234854