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A083141 Main diagonal of array in A083140. 2
2, 9, 35, 91, 209, 377, 629, 817, 1219, 1769, 2201, 2923, 3649, 4343, 5029, 5989, 7729, 8479, 10117, 11573, 12629, 14299, 16019, 17711, 21631, 23129, 24617, 26857, 28667, 30623, 35687, 38383, 42607, 44063, 50213, 52699, 56363, 60799, 63961, 68681 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..41.

FORMULA

a(n) = prime(n)*prime(2*n-2)

MATHEMATICA

Table[ Prime[n]*Prime[2n - 2], {n, 2, 41}]

CROSSREFS

Cf. A083140.

Sequence in context: A182407 A200050 A032601 * A001571 A092431 A147762

Adjacent sequences:  A083138 A083139 A083140 * A083142 A083143 A083144

KEYWORD

nonn

AUTHOR

Yasutoshi Kohmoto (zbi74583(AT)boat.zero.ad.jp), Jun 05 2003

EXTENSIONS

Edited and extended by Robert G. Wilson v, Jun 11, 2003

STATUS

approved

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Last modified May 25 16:33 EDT 2013. Contains 225647 sequences.