A076583 Triangular numbers which are 9-almost primes.

25200, 61776, 195000, 248160, 270480, 295296, 306936, 320400, 346528, 373680, 400960, 446040, 460320, 461280, 499500, 662976, 664128, 749700, 818560, 902496, 903840, 946000, 1037520, 1155960, 1185030, 1664400, 1721440, 1873080, 1888596

Offset: 1

Author

Shyam Sunder Gupta, Oct 19 2002

Keywords

• base
• easy
• nonn

Examples

			a(1)=25200, 25200 is a triangular number and 25200=2*2*2*2*3*3*5*5*7 i.e. is a product of 9 prime factors so is 9-almost prime.