1181953

Appears in sequences

• Smallest triangular number k such that k-1 has exactly n (not necessarily distinct) prime factors.at n=13A081950
• 1/16 the number of (n+1) X 2 0..3 arrays with all 2 X 2 subblocks having the same four values.at n=17A184031
• Terms of A324315 (squarefree integers m > 1 such that if prime p divides m, then the sum of the base p digits of m is at least p) that are also hexagonal numbers (A000384) with index equal to their largest prime factor.at n=34A324319