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A365493 a(n) is the smallest number which can be represented as the sum of n n-almost primes in exactly n ways, or -1 if no such number exists. 1
2, 18, 44, 112, 418 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Almost Prime.
EXAMPLE
For n = 2: 18 = 2*2 + 2*7 = 3*3 + 3*3.
CROSSREFS
Sequence in context: A189333 A072278 A296266 * A280316 A131538 A009820
KEYWORD
nonn,more
AUTHOR
Ilya Gutkovskiy, Sep 07 2023
STATUS
approved

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Last modified July 24 13:23 EDT 2024. Contains 374584 sequences. (Running on oeis4.)