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A028979 Palindromes which are the product of two consecutive primes. 3
6, 77, 323, 36863, 1115111, 3740615160473 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

No further terms < 2*10^17.

Next term > 36*10^18. [From Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 11 2010]

LINKS

P. De Geest, More palindromic products of integer sequences

EXAMPLE

323 = 17*19 is a member.

MATHEMATICA

palQ[n_] := n == FromDigits@ Reverse@ IntegerDigits@n; p = 2; q = 3; lst = {}; While[p < 6 10^9, If[ palQ[p*q], AppendTo[lst, p*q]; Print[p*q]]; p = q; q = NextPrime@q]; lst [From Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 11 2010]

CROSSREFS

Cf. A028888, A028978.

Sequence in context: A132613 A009763 * A082629 A154642 A154645 A030641

Adjacent sequences:  A028976 A028977 A028978 * A028980 A028981 A028982

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com)

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Last modified February 12 16:14 EST 2012. Contains 205432 sequences.