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A076583 Triangular numbers which are 9-almost primes. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..29.

EXAMPLE

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.

CROSSREFS

Sequence in context: A253530 A190319 A296097 * A226501 A046709 A179723

Adjacent sequences:  A076580 A076581 A076582 * A076584 A076585 A076586

KEYWORD

base,easy,nonn

AUTHOR

Shyam Sunder Gupta, Oct 19 2002

STATUS

approved

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Last modified July 24 11:42 EDT 2021. Contains 346273 sequences. (Running on oeis4.)