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A225789
Least triangular number of the form p*triangular(n) where p is a prime number, or 0 if no such triangular number exists.
0
0, 3, 6, 66, 190, 45, 105, 0, 2556, 1035, 5995, 8646, 1326, 16471, 210, 28680, 36856, 46971, 0, 72010, 630, 3003, 32131, 16836, 20100, 52975, 246051, 17766, 329266, 42195, 17205, 491536, 0, 17391, 0, 49770, 55278, 0, 30381, 5460, 0, 164451, 33411, 0, 4950, 85905, 584821
OFFSET
0,2
FORMULA
a(n) = A225787(n) * A000217(n).
CROSSREFS
KEYWORD
nonn
AUTHOR
Alex Ratushnyak, May 16 2013
EXTENSIONS
a(28) corrected by Mansour Qahwaji, Jul 25 2019
STATUS
approved