MATHEMATICA
Flatten[Table[3^x, {x, 0, 13}, {y, 0, x}]] (* _Alonso del Arte, _, Nov 29 2011 *)
Flatten[Table[3^x, {x, 0, 13}, {y, 0, x}]] (* _Alonso del Arte, _, Nov 29 2011 *)
Jeremy Gardiner, <a href="/A098355/b098355_1.txt">Table of n, a(n) for n = 0..349</a>
proposed
approved
editing
proposed
Jeremy Gardiner, <a href="/A098355/b098355_1.txt">Table of n, a(n) for n = 0..349</a>
approved
editing
reviewed
approved
proposed
reviewed
editing
proposed
Flatten[Table[3^x, {x, 0, 13}, {y, 0, x}]] (* Alonso del Arte, Nov 29 2011 *)
proposed
editing
editing
proposed