A139475 Number of decimal digits in A139474(n).

1, 2, 11, 48, 783, 3135

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