51864

Appears in sequences

• Antidiagonal sums of A086272 (and of A086273).at n=31A086274
• a(n) = 1728*n + 24.at n=29A157325
• Smallest k such that p^p -+ k is prime, where p=prime(n).at n=15A157719
• Solution of the complementary equation a(n) = 2*a(n-1) - a(n-3) + b(n-2), where a(0) = 1, a(1) = 2, a(2) = 3, b(0) = 4, b(1) = 5, b(2) = 6, and (a(n)) and (b(n)) are increasing complementary sequences.at n=18A295616
• Expansion of e.g.f. arcsin(x)/(1 - x).at n=8A296726
• Triangle read by rows: T(m,n) (m >= n >= 1) = number of regions formed by drawing the line segments connecting any two of the (m+1) X (n+1) lattice points in an m X n grid of squares and extending them to the boundary of the grid.at n=20A333282
• Main diagonal of triangle in A333282.at n=5A333294