18299

Appears in sequences

• Numbers whose base-5 representation contains exactly three 1's and three 4's.at n=24A045262
• Main diagonal of the array A059503.at n=8A059509
• Denominators of convergents to Pi by Farey fractions.at n=29A063673
• 47-gonal numbers.at n=28A095311
• Positive integers i for which A112049(i) == 8.at n=18A112068
• 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, -1), (-1, -1, 0), (-1, 0, 1), (0, 1, 0), (1, -1, 0)}.at n=11A148120
• G.f. satisfies: A(x) = P(x*A(x)^3) where A(x/P(x)^3) = P(x) is the g.f. for partition numbers (A000041).at n=6A171804
• a(1) = 1, a(n) = prime(a(n-1)) + 3*a(n-1).at n=5A179513
• Number of vertices in truncated tetrahedron with faces that are centered polygons.at n=14A193218
• Odd composite integers m such that U(m)^2 == 1 (mod m) and V(m) == 5 (mod m), where U(m)=A004254(m) and V(m)=A003501(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=5 and b=1, respectively.at n=34A337779
• Odd composite integers m such that A004254(m-J(m,21)) == 0 (mod m) and gcd(m,21)=1, where J(m,21) is the Jacobi symbol.at n=36A340098
• Partial sums of A071619.at n=43A358042