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A072672 Prime(n)*prime(2*n)+prime(n)+prime(2*n). 2
11, 31, 83, 159, 359, 531, 791, 1079, 1487, 2159, 2559, 3419, 4283, 4751, 5471, 7127, 8399, 9423, 11151, 12527, 13467, 15519, 16799, 20159, 22539, 24479, 26207, 28511, 29919, 32147, 37631, 41183, 43883, 47319, 52499, 54719, 59091, 62975, 66863 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(10) = A000040(10)*A000040(20)+A000040(10)+A000040(20) = 29*71+29+71 = 2159.

CROSSREFS

Cf. A072668, A072673.

Sequence in context: A038773 A054757 A038768 * A072673 A126365 A082102

Adjacent sequences:  A072669 A072670 A072671 * A072673 A072674 A072675

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 30 2002

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Last modified February 16 15:27 EST 2012. Contains 205930 sequences.