41912

Appears in sequences

• Numbers n such that 4^n+3^(n-1) is prime.at n=35A093717
• Triangle read by rows: T(n,k) is the number of deco polyominoes of height n and having k columns of even length (0 <= k < n). A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column.at n=41A121748
• 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, 1, 1), (0, 1, -1), (1, 0, 0)}.at n=11A148238
• Sum over each antidiagonal of A244306.at n=23A244307
• Sum of the asymmetry degrees of all compositions of n without 2's.at n=19A275443
• Number of 2 X 2 matrices having entries in {0,1,...,n} and determinant in the open interval (-n,n) with no entry repeated.at n=25A279273
• Number of unlabeled connected simple graphs with n nodes of degree 4 or less and degree at least 2 which are not 4-regular graphs.at n=9A289990
• a(n) = n*(n + 1)*(n^2 + n + 22)/24.at n=31A318054
• Maximum number of ways in which a set of integer-sided rectangular pieces can tile an n X 2 rectangle.at n=9A361218
• Expansion of 1/(1 - 4*x^2/(1-x))^(5/2).at n=10A377215