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A046496
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Primes expressible as the sum of 4 consecutive palindromes.
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0
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827, 1231, 1553, 2039, 3169, 3251, 159683, 199687, 319699, 1999969987, 2000030009, 3200030021, 80000299997, 200000300009, 20000003000009, 1599999969999983, 15999999996999999983, 24000000003000000013
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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LINKS
| P. De Geest, World!Of Numbers
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FORMULA
| Primes of either of two forms: 4*(a+1)*10^(2*k)+3*10^k+4*a-7 or 4*(a+1)*10^(2*k)-3*10^k+4*a-29, where 1<=a<=8 and k is positive integer. [From Max Alekseyev (maxale(AT)gmail.com), Apr 12 2009]
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EXAMPLE
| E.g. 319699 = 79797 + 79897 + 79997 + 80008.
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CROSSREFS
| Cf. A000040, A002113.
Sequence in context: A104375 A066946 A143799 * A102350 A108830 A134726
Adjacent sequences: A046493 A046494 A046495 * A046497 A046498 A046499
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KEYWORD
| nonn,base
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1998.
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EXTENSIONS
| Extended by Max Alekseyev (maxale(AT)gmail.com), Apr 12 2009
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