A004608 Expansion of Pi in base 9.

3, 1, 2, 4, 1, 8, 8, 1, 2, 4, 0, 7, 4, 4, 2, 7, 8, 8, 6, 4, 5, 1, 7, 7, 7, 6, 1, 7, 3, 1, 0, 3, 5, 8, 2, 8, 5, 1, 6, 5, 4, 5, 3, 5, 3, 4, 6, 2, 6, 5, 2, 3, 0, 1, 1, 2, 6, 3, 2, 1, 4, 5, 0, 2, 8, 3, 8, 6, 4, 0, 3, 4, 3, 5, 4, 1, 6, 3, 3, 0, 3, 0, 8, 6, 7, 8, 1, 3, 2, 7, 8, 7, 1, 5, 8, 8, 5, 3, 6, 8, 1, 3, 6, 5, 3

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• base
• cons
• easy

Examples

			3.12418812407442788645177761731035828516...
		

Links

• G. C. Greubel, Table of n, a(n) for n = 1..10000
• Steve Pagliarulo, Stu's pi page: base 9 (23 pages) [Capture on Wayback Machine]
• Steve Pagliarulo, Stu's pi page: base 9 (recovered link)

Crossrefs

Pi in base b: A004601 (b=2), A004602 (b=3), A004603 (b=4), A004604 (b=5), A004605 (b=6), A004606 (b=7), A006941 (b=8), this sequence (b=9), A000796 (b=10), A068436 (b=11), A068437 (b=12), A068438 (b=13), A068439 (b=14), A068440 (b=15), A062964 (b=16), A060707 (b=60).

Cf. A007514.

Programs

Mathematica

RealDigits[Pi, 9, 105][[1]]
Table[ResourceFunction["NthDigit"][Pi, n, 9], {n, 1, 105}] (* Joan Ludevid, Oct 09 2022 easy to compute a(10000000)=5 with this function; requires Mathematica 12.0+ *)

Extensions

More terms from Robert G. Wilson v, Oct 20 2002