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A098355
Multiplication table of the powers of three read by antidiagonals.
3
1, 3, 3, 9, 9, 9, 27, 27, 27, 27, 81, 81, 81, 81, 81, 243, 243, 243, 243, 243, 243, 729, 729, 729, 729, 729, 729, 729, 2187, 2187, 2187, 2187, 2187, 2187, 2187, 2187, 6561, 6561, 6561, 6561, 6561, 6561, 6561, 6561, 6561, 19683, 19683, 19683, 19683, 19683, 19683
OFFSET
0,2
COMMENTS
3^A003056: 3^n appears n+1 times.
LINKS
EXAMPLE
1; 3,3; 9,9,9; 27,27,27,27;
MATHEMATICA
Flatten[Table[3^x, {x, 0, 13}, {y, 0, x}]] (* Alonso del Arte, Nov 29 2011 *)
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Douglas Stones (dssto1(AT)student.monash.edu.au), Sep 04 2004
STATUS
approved