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A092957
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In the triangle 1 / 1*2 2*3 / 1*2*3 2*3*4 3*4*5 / ... if every number k is replaced by prime(k) one gets the following triangle 2 / 6 15 / 30 105 385 / 210 1155 5005 17017 / ... Sequence contains the row sums.
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0
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2, 21, 520, 23387, 1488080, 126969115, 14557233552, 1815049963645, 289937962615754, 52507954943028529, 9917857274310865368, 2089330987019155955571, 490521122195171102901196
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OFFSET
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1,1
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COMMENTS
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The leading diagonal is given by A060381 and the first column by A002110.
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LINKS
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MAPLE
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a:=n->sum(product(ithprime(i+j-1), j=1..n), i=1..n): seq(a(n), n=1..16); # Emeric Deutsch, Jun 26 2005
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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