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A374264
a(n) is the smallest m such that A374167(m) = n, or -1 if no such m exists.
1
2, 1, 15, 36, 3120, 551, 9608, 2521095, 17338312921
OFFSET
2,1
COMMENTS
For n > 9, a(n) exceeds primepi(10^10) = 455052511 or is -1.
Conjecture: a(n) is never -1.
EXAMPLE
a(5) = 36 because the first 5 that appears in A374167 is A374167(36).
CROSSREFS
Sequence in context: A272304 A266521 A039652 * A012894 A013076 A012890
KEYWORD
nonn,hard,more
AUTHOR
Jon E. Schoenfield, Jul 02 2024
EXTENSIONS
a(10) from Michael S. Branicky, Jul 05 2024
STATUS
approved