|
| |
|
|
A018855
|
|
Smallest triangular number that begins with n.
|
|
1
| |
|
|
1, 21, 3, 45, 55, 6, 78, 820, 91, 10, 1128, 120, 136, 1431, 15, 1653, 171, 1830, 190, 2016, 21, 2211, 231, 2415, 253, 2628, 276, 28, 2926, 300, 3160, 325, 3321, 3403, 351, 36, 378, 3828, 3916, 406, 4186, 4278, 435, 4465, 45, 465, 4753, 4851, 496, 5050, 5151, 528
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
