A138114 Triangle read by rows: row n lists the first n digits of the decimal expansion of Pi.

3, 3, 1, 3, 1, 4, 3, 1, 4, 1, 3, 1, 4, 1, 5, 3, 1, 4, 1, 5, 9, 3, 1, 4, 1, 5, 9, 2, 3, 1, 4, 1, 5, 9, 2, 6, 3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 8

Offset: 1

Author

Omar E. Pol, Mar 14 2008

Keywords

• easy
• nonn
• tabl
• base

Examples

			Triangle begins:
..... 3
.... 3,1
... 3,1,4
.. 3,1,4,1
. 3,1,4,1,5
		

Crossrefs

Cf. A000796, A138070, A138071.

Programs

Mathematica

s={};Do[AppendTo[s,RealDigits[Pi,10,n][[1]]],{n,12}];s//Flatten (* James C. McMahon, Jun 05 2025 *)