175545

Appears in sequences

• Odd numbers divisible by the palindromic sum of their prime factors (counted with multiplicity).at n=33A046359
• Number of peaks at even level in all Dyck paths of semilength n with no UUU's and no DDD's, (U=(1,1), D=(1,-1)). These Dyck paths are counted by the secondary structure numbers (A004148).at n=13A166294
• Row sums of triangle A173302.at n=43A173303