310866
domain: N
Appears in sequences
- Triangular numbers which are sums of 4 consecutive primes.at n=21A173420
- Triangular numbers n such that sigma(n) is a square number.at n=21A256151
- Triangular numbers T(i) that can be expressed as the sum of 2 positive triangular numbers, T(j)+T(k), and for which i+j+k is a triangular number, where T is A000217.at n=13A343426