A153358 Run length decoding of Pi.

141, 92653, 89793, 38, 6264, 383, 79, 2884, 9, 1693993, 5105820, 749445923, 164062862089986280348253421170679821480865132823066470938446095505822317253594, 284811174502841027019385211055596446229489549303819644288109756659334461284756482

Offset

1,1

Comments

The first digit of Pi is 3, indicating a(1) consists of the next 3 digits: 141. The next digit of Pi is 5, indicating a(2) consists of the next 5 digits: 92653, etc.

If the run digit is a sequence of N zeros, then the run length is the next N+1 digits following the zeros. For example, after a(12) the next digit is a zero. The run length is the next two digits, 78, so a(13) is a 78-digit number: 164062862089986280348253421170679821480865132823066470938446095505822317253594.

a(222) is the first 3-digit run at 971 digits.

a(318) is the first 4-digit run at 4229 digits.

Links

Table of n, a(n) for n=1..14.

Example

(3)141, (5)92653, (5)89793, (2)38, (4)6264, (3)383, (2)79, (5)02884, etc.

Crossrefs

Sequence in context: A172865 A172904 A164525 * A066627 A172668 A172764

Adjacent sequences: A153355 A153356 A153357 * A153359 A153360 A153361

Keyword

nonn,base

Author

Gil Broussard, Dec 24 2008

Status

approved