141752

Appears in sequences

• Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k UUDD's starting at level 0; here U=(1,1), D=(1,-1) (0<=k<=floor(n/2)).at n=50A114486
• The smallest pronic (A002378) that contains the digits of n in its exact middle.at n=17A163597