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A130493
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Triangle read by rows in which row n contains n! repeated n times.
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2
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1, 2, 2, 6, 6, 6, 24, 24, 24, 24, 120, 120, 120, 120, 120, 720, 720, 720, 720, 720, 720, 5040, 5040, 5040, 5040, 5040, 5040, 5040
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Row sums = A001563: (1, 4, 18, 96, 600, 4320,...). A130477(n,k) * A130478(n,k) = A130493(n,k). Example: take dot products of rows with equal numbers of terms in A130477 and A130478, (1, 3, 8, 12) dot (24, 8, 3, 2) = (24, 24, 24, 24).
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FORMULA
| Triangle, n! repeated n times per row.
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EXAMPLE
| First few rows of the triangle are:
1;
2, 2;
6, 6, 6;
24, 24, 24, 24;
...
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CROSSREFS
| Cf. A001563, A130477, A130478.
Sequence in context: A033742 A048594 A178801 * A163118 A010762 A055993
Adjacent sequences: A130490 A130491 A130492 * A130494 A130495 A130496
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), May 31 2007
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