login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A104755
Decimal expansion of solution to x^(7^x) = 7.
5
1, 2, 0, 5, 0, 5, 3, 4, 2, 6, 1, 9, 6, 3, 9, 1, 7, 4, 9, 3, 3, 8, 0, 9, 6, 3, 6, 5, 6, 5, 4, 9, 3, 2, 1, 0, 6, 8, 6, 6, 5, 1, 1, 1, 8, 5, 7, 1, 8, 9, 3, 4, 8, 4, 6, 1, 8, 1, 0, 6, 6, 0, 5, 3, 0, 9, 0, 3, 9, 9, 9, 6, 8, 8, 2, 6, 7, 9, 9, 5, 7, 4, 1, 1, 5, 4, 2, 1, 9, 0, 4, 7, 1, 0, 0, 2, 7, 0, 1, 5, 4, 1, 8, 3, 5
OFFSET
1,2
EXAMPLE
1.20505342619639174933809636565493210686651118571893...
MATHEMATICA
RealDigits[x /. FindRoot[x^(7^x) == 7, {x, 1}, WorkingPrecision -> 120]][[1]] (* Amiram Eldar, May 04 2023 *)
PROG
(PARI) solve(x = 1, 2, x^(7^x) - 7) \\ Amiram Eldar, May 04 2023
KEYWORD
cons,nonn
AUTHOR
Zak Seidov, Mar 23 2005
EXTENSIONS
More terms from Amiram Eldar, May 04 2023
STATUS
approved