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A054266 Sum of composite numbers between prime p and nextprime(p) is palindromic. 5
3, 5, 109, 193, 281, 509, 661, 827, 857, 1439, 2111, 3433, 3889, 3967, 4549, 6661, 7001, 8467, 10099, 17203, 18583, 21011, 21611, 23831, 24847, 25117, 26261, 26497, 26861, 28181, 29587, 30497, 31307, 47569, 47869, 49789, 53939, 54139, 66361 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Zak Seidov, Table of n, a(n) for n = 1..500

P. De Geest, World!Of Numbers

EXAMPLE

a(4)=193 since between 193 and next prime 197 we get the palindromic sum 194 + 195 + 196 = 585.

MATHEMATICA

okQ[l_]:=Module[{x=IntegerDigits[Total[Range[First[l]+1, Last[l]-1]]]}, x==Reverse[x]]; Transpose[Select[Partition[ Prime[Range[2, 6700]], 2, 1], okQ]][[1]] (* Harvey P. Dale, Mar 18 2011 *)

CROSSREFS

Cf. A046933, A054264, A054265, A054267, A054268.

Sequence in context: A003112 A130187 A289488 * A054268 A153137 A105526

Adjacent sequences:  A054263 A054264 A054265 * A054267 A054268 A054269

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Apr 15 2000.

STATUS

approved

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Last modified January 20 02:29 EST 2018. Contains 297938 sequences.