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A077316 Triangle read by rows: T(n,k) is the k-th prime = 1 (mod n). 7
2, 3, 5, 7, 13, 19, 5, 13, 17, 29, 11, 31, 41, 61, 71, 7, 13, 19, 31, 37, 43, 29, 43, 71, 113, 127, 197, 211, 17, 41, 73, 89, 97, 113, 137, 193, 19, 37, 73, 109, 127, 163, 181, 199, 271, 11, 31, 41, 61, 71, 101, 131, 151, 181, 191, 23, 67, 89, 199, 331, 353 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Nathaniel Johnston, Rows 1..100, flattened

EXAMPLE

Triangle begins:

   2;

   3,  5;

   7, 13, 19;

   5, 13, 17, 29;

  11, 31, 41, 61, 71;

  ...

MAPLE

Tj := proc(n, k) option remember: local j, p: if(k=0)then return 0:fi: for j from procname(n, k-1)+1 do if(isprime(n*j+1))then return j: fi: od: end: A077316 := proc(n, k) return n*Tj(n, k)+1: end: seq(seq(A077316(n, k), k=1..n), n=1..15); # Nathaniel Johnston, Sep 02 2011

CROSSREFS

Cf. A034694 (first column), A077317 (main diagonal), A077318 (row sums), A077319, A093870, A193869 (row products).

Sequence in context: A076047 A245640 A178766 * A082011 A101044 A077321

Adjacent sequences:  A077313 A077314 A077315 * A077317 A077318 A077319

KEYWORD

nonn,easy,tabl

AUTHOR

Amarnath Murthy, Nov 04 2002

EXTENSIONS

Edited and extended by Franklin T. Adams-Watters, Aug 29 2006

STATUS

approved

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Last modified April 24 18:03 EDT 2019. Contains 322430 sequences. (Running on oeis4.)