30327
domain: N
Appears in sequences
- Numbers k such that T(k) = T(A072522(k)) + T(A072522(k+1)), T(i) being the triangular numbers.at n=29A080824
- n times pi(n) is made of nontrivial runs of identical digits, where pi(n)=A000720(n).at n=12A116057
- Number of compositions (ordered partitions) of n into distinct squarefree parts.at n=39A331846