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A072468 Leading diagonal of triangle in A072467. 2
2, 5, 19, 53, 151, 211, 463, 673, 1009, 1231, 2179, 2593, 3823, 4649, 5821, 6977, 9283, 10369, 14479, 15901, 18397, 20549, 25301, 27073, 32251, 35569, 40879, 44017, 53419, 55681, 66713, 72577, 80191, 87041, 97441, 101341, 116329, 123653 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..38.

MATHEMATICA

a = {2}; k = 3; Do[i = 1; While[i < n + 1, If[ PrimeQ[k] && Mod[k, n] == 1, a = Append[a, k]; i++ ]; k++ ], {n, 2, 40}]; Table[ a[[n(n + 1)/2]], {n, 1, 40}]

CROSSREFS

Cf. A072467, A072469.

Sequence in context: A112266 A287019 A215169 * A148430 A062666 A148431

Adjacent sequences:  A072465 A072466 A072467 * A072469 A072470 A072471

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Jun 19 2002

EXTENSIONS

Edited by Robert G. Wilson v, Jun 28 2002

STATUS

approved

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Last modified August 12 10:31 EDT 2020. Contains 336438 sequences. (Running on oeis4.)