OFFSET
1,2
COMMENTS
Row sums = A001780, (1, 6, 24, 80, 240, ...).
LINKS
G. C. Greubel, Rows n = 1..100 of triangle, flattened
FORMULA
T(n, k) = 2^(n-1)*k. - G. C. Greubel, Jun 05 2019
EXAMPLE
First few rows of the triangle are:
1;
2, 4;
4, 8, 12;
8, 16, 24, 32;
16, 32, 48, 64, 80;
32, 64, 96, 128, 160, 192; ...
MATHEMATICA
Table[2^(n-1)*k, {n, 1, 12}, {k, 1, n}]//Flatten (* G. C. Greubel, Jun 05 2019 *)
PROG
(PARI) {T(n, k) = 2^(n-1)*k}; \\ G. C. Greubel, Jun 05 2019
(Magma) [[2^(n-1)*k: k in [1..n]]: n in [1..12]]; // G. C. Greubel, Jun 05 2019
(Sage) [[2^(n-1)*k for k in (1..n)] for n in (1..12)] # G. C. Greubel, Jun 05 2019
(GAP) Flat(List([1..12], n-> List([1..n], k-> 2^(n-1)*k ))); # G. C. Greubel, Jun 05 2019
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, May 11 2007
EXTENSIONS
More terms added by G. C. Greubel, Jun 05 2019
STATUS
approved