963966
domain: N
Appears in sequences
- Triangular numbers using only the curved digits 0, 3, 6, 8 and 9.at n=30A079653
- Triangular numbers composed of digits {3,6,9}.at n=7A119198
- Triangular numbers n such that sigma(n) is a square number.at n=34A256151
- 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=16A343426