50013

Appears in sequences

• Numbers such that the digital sum base 2 and the digital sum base 5 and the digital sum base 10 all are equal.at n=33A135125
• Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k UDDU's starting at level 1.at n=45A135328
• Partial sums of A000141.at n=21A175361
• Number of n X 2 0..4 arrays with each element equal to the number its horizontal and vertical neighbors unequal to itself.at n=21A195956