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A031881 Lucky numbers both palindromic and prime. 2
3, 7, 151, 727, 787, 10501, 13831, 18181, 30103, 70207, 72727, 77377, 78487, 93139, 94849, 96469, 96769, 98689, 1008001, 1062601, 1160611, 1190911, 1253521, 1327231, 1409041, 1447441, 1463641, 1490941, 1640461, 1670761, 1684861 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert G. Wilson v, Table of n, a(n) for n = 1..66

MATHEMATICA

lst = Range[1, 10^6, 2]; i = 2; While[lst[[i]] <= Length[lst], del = Partition[Range[lst[[i]], Length[lst], lst[[i]]], 1]; lst = Delete[lst, del]; i++ ]; lst = Select[lst, PrimeQ[ # ] &]; lst = Select[lst, (ToString[ # ] == StringReverse[ToString[ # ]]) &]

CROSSREFS

Cf. A000959.

Sequence in context: A219166 A119958 A275195 * A264931 A227890 A114789

Adjacent sequences:  A031878 A031879 A031880 * A031882 A031883 A031884

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

EXTENSIONS

Corrected and extended by Vit Planocka (planocka(AT)mistral.cz), Jan 31 2003

STATUS

approved

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Last modified November 16 04:48 EST 2018. Contains 317252 sequences. (Running on oeis4.)