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A139475 Number of decimal digits in A139474(n). 4
1, 2, 11, 48, 783, 3135 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..6.

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}] (*Artur Jasinski*)

CROSSREFS

Cf. A001109, A139473, A139474, A139476.

Sequence in context: A054894 A270662 A330540 * A034568 A265610 A036996

Adjacent sequences:  A139472 A139473 A139474 * A139476 A139477 A139478

KEYWORD

base,nonn

AUTHOR

Artur Jasinski, Apr 22 2008, Sep 29 2008

STATUS

approved

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Last modified January 23 10:50 EST 2020. Contains 331171 sequences. (Running on oeis4.)