28503

Appears in sequences

• Numbers j such that j divides the sum of the digits of j!.at n=22A108825
• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 2X4 tee 1,1 1,2 1,3 2,3 1,4 in any orientation.at n=12A146044
• Triangle read by rows: T(n,k) (0 <= k <= n) is the rank of the ideal I_r in the inverse semigroup D_n of all difunctional relations on an n-element set.at n=57A294432
• Number of nX4 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=9A302305
• Number of integer partitions of n such that the dual of the multiset partition obtained by factoring each part into prime numbers is a (strict) antichain, also called T_1 integer partitions.at n=41A326977
• a(n) = Sum_{1 <= x_1 <= x_2 <= x_3 <= x_4 <= n} gcd(x_1, x_2, x_3 , x_4, n).at n=26A343518
• Distance from 10^n to the next prime triplet.at n=29A357052
• Consecutive states of the linear congruential pseudo-random number generator for Smalltalk-80 when started at 1.at n=18A384220