99681
domain: N
Appears in sequences
- Largest n-digit triangular number.at n=4A095864
- Triangular numbers which are sums of three consecutive primes.at n=12A167788
- Largest squarefree triangular number < 10^n.at n=4A226382
- 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=9A343426
- Triangular numbers (A000217) with arithmetic derivative (A003415) a palindrome (A002113).at n=13A353217