49924

Appears in sequences

• Admirable Harshad numbers n such that the subtracted divisor is equal to the digital sum of n.at n=24A111948
• Number of permutations of length n which avoid the patterns 1234, 3421, 4231.at n=13A116803
• Absolute discriminants of complex quadratic fields with 3-class group of type (3,3), 3-principalization type (2143), IPAD [(3,9)^4], and Hilbert 3-class field tower of unknown length at least 3.at n=1A247688
• Number of nX3 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors.at n=5A283686
• T(n,k) = Number of n X k 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors.at n=33A283691
• Number of 6Xn 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors.at n=2A283696
• Expansion of Sum_{k>=1} k^4 * x^k/(1 - x^k)^4.at n=13A366933