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A289108
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Triangle read by rows: T(n,k) = (k + 1)*prime(n) + k for n > 0, 0 <= k <= n, and with T(0,0) = 1.
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1
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1, 2, 5, 3, 7, 11, 5, 11, 17, 23, 7, 15, 23, 31, 39, 11, 23, 35, 47, 59, 71, 13, 27, 41, 55, 69, 83, 97, 17, 35, 53, 71, 89, 107, 125, 143, 19, 39, 59, 79, 99, 119, 139, 159, 179, 23, 47, 71, 95, 119, 143, 167, 191, 215, 239, 29, 59, 89, 119, 149, 179, 209, 239, 269, 299, 329
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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LINKS
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EXAMPLE
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Triangle begins:
1;
2, 5;
3, 7, 11;
5, 11, 17, 23;
7, 15, 23, 31, 39;
11, 23, 35, 47, 59, 71;
13, 27, 41, 55, 69, 83, 97;
17, 35, 53, 71, 89, 107, 125, 143;
19, 39, 59, 79, 99, 119, 139, 159, 179;
23, 47, 71, 95, 119, 143, 167, 191, 215, 239;
...
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MATHEMATICA
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Join[{1}, t[n_, k_] := (k + 1) Prime[n] + k; Table[t[n, k], {n, 10}, {k, 0, n}]//Flatten]
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PROG
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(Magma) /* As triangle (here NthPrime(0)=1) */ [[(k+1)*NthPrime(n)+k: k in [0..n]]: n in [0.. 15]];
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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