86320
domain: N
Appears in sequences
- Triangular numbers which are 7-almost primes.at n=27A076581
- Number of length 3+2 0..n arrays with some pair in every consecutive three terms totalling exactly n.at n=24A245872
- Triangular numbers n with digits d_1, d_2, ..., d_k such that d_1*(d_1+1)/2 + ... + d_k*(d_k+1)/2 is a triangular number.at n=45A254957
- Refactorable triangular numbers.at n=21A272524