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A334633
Numbers k of the form p_1^p_m * p_2^p_(m-1) * ... * p_(m-1)^p_2 * p_m^p_1 for increasing primes p_i.
0
1, 4, 27, 72, 800, 3125, 6272, 21600, 30375, 169344, 247808, 750141, 823543, 1384448, 6690816, 19600000, 37380096, 37879808, 189267968, 190512000, 235782657, 774400000, 1022754816, 1313046875, 2344190625, 3502727631, 4326400000, 4437573632, 5110235136, 118374400000
OFFSET
1,2
COMMENTS
More common than prime(n)^prime(n) (i.e., A051674).
EXAMPLE
1 is the product of zero primes, 4=2^2, 27=3^3, 72=2^3*3^2, 800=2^5*5^2.
CROSSREFS
Sequence in context: A122406 A276372 A071837 * A266011 A015238 A298987
KEYWORD
nonn
AUTHOR
EXTENSIONS
Missing terms 19600000 and 2344190625 added, more terms from and offset changed to 1 by Jinyuan Wang, Sep 12 2020
STATUS
approved