114003
domain: N
Appears in sequences
- Triangular numbers m such that A040115(m) is also triangular.at n=29A087597
- Triangular numbers for which the sum of the digits is a square.at n=27A117404
- Triangular numbers T such that T+10 is the next prime after T.at n=19A129540
- Triangular numbers whose sum of digits is 9.at n=22A375824
- Semiperimeter of the unique primitive Pythagorean triple (x,y,z) such that (x-y+z)/2 is A002315(n) and such that its long leg and its hypotenuse are consecutive natural numbers.at n=3A378965