A114475 Number of decimal digits in Mersenne(10^n).

1, 4, 31, 302, 3011, 30103, 301030, 3010300, 30103000, 301029996, 3010299957, 30102999567, 301029995664, 3010299956640, 30102999566399, 301029995663982, 3010299956639812, 30102999566398120

Offset

0,2

Comments

Digits approach expansion of log_10(2) = 0.30102999... (A007524).

Links

Table of n, a(n) for n=0..17.

Eric Weisstein's World of Mathematics, Mersenne Number

Maple

seq(length(2^(10^n)), n=0..6); # Zerinvary Lajos, Apr 20 2008

Mathematica

Table[Floor[10^n Log[10, 2]]+1, {n, 0, 17}]

Crossrefs

Cf. A000225, A007524.

Sequence in context: A276316 A199683 A375434 * A243312 A349739 A359621

Adjacent sequences: A114472 A114473 A114474 * A114476 A114477 A114478

Keyword

nonn,base

Author

Eric W. Weisstein, Nov 30 2005

Status

approved