A139475 - OEIS

A139475

Number of digits in the decimal expansion of A139474(n).

1, 2, 11, 48, 783, 3135, 50170

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OFFSET

1,2

LINKS

FORMULA

a(n) = A055642(A139474(n)). - Amiram Eldar, Oct 13 2024

MATHEMATICA

Table[Length[IntegerDigits[Expand[((2*Sqrt[2] + 3)^(2^(Prime[n] - 1) - 1) - (3 - 2*Sqrt[2])^(2^(Prime[n] - 1) - 1))/(4*Sqrt[2])]]], {n, 1, 6}]

CROSSREFS

KEYWORD

base,nonn,more,changed

AUTHOR

Artur Jasinski, Apr 22 2008, Sep 29 2008

EXTENSIONS

a(7) from Amiram Eldar, Oct 13 2024

STATUS

approved