A138115 Triangle read by rows: row n lists the first n digits of the decimal expansion of e.

2, 2, 7, 2, 7, 1, 2, 7, 1, 8, 2, 7, 1, 8, 2, 2, 7, 1, 8, 2, 8, 2, 7, 1, 8, 2, 8, 1, 2, 7, 1, 8, 2, 8, 1, 8, 2, 7, 1, 8, 2, 8, 1, 8, 2, 2, 7, 1, 8, 2, 8, 1, 8, 2, 8, 2, 7, 1, 8, 2, 8, 1, 8, 2, 8, 4, 2, 7, 1, 8, 2, 8, 1, 8, 2, 8, 4, 5

Offset: 1

Author

Omar E. Pol, Mar 14 2008

Keywords

• easy
• nonn
• tabl
• base

Comments

Also, successive digits of A011543.

Examples

			Triangle begins:
..... 2
.... 2,7
... 2,7,1
.. 2,7,1,8
. 2,7,1,8,2
		

Crossrefs

Cf. A001113, A011543, A138068, A138069.

Programs

Mathematica

Module[{nn=20,ed},ed=RealDigits[E,10,nn][[1]];Flatten[Table[Take[ed,n],{n,nn}]]] (* Harvey P. Dale, Dec 24 2014 *)