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A135255
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Partial sums of A102659 read as decimal integers.
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0
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1, 3, 15, 127, 249, 1361, 2483, 3705, 14817, 25939, 37151, 48373, 60495, 72717, 183829, 294951, 406163, 517385, 629507, 741719, 853941, 975163, 1097385, 2208497, 3319619, 4430831, 5542053, 6654165, 7766287, 8878499, 9990721
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| The initial 5 ones of 11111843 of a(32) leads me to conjecture that some element of this sequence is, base 10, a concatenation of the digits (1,2). Could there be an element which is also one of the Lyndon words in the underlying A102659?
The subsequence of primes in this partial sum begins: 3, 127, 1361, 25939, 183829, 2208497, 3319619. [From Jonathan Vos Post (jvospost3(AT)gmail.com), Mar 21 2010]
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EXAMPLE
| a(25) = 1 + 2 + 12 + 112 + 122 + 1112 + 1122 + 1222 + 11112 + 11122 + 11212 + 11222 + 12122 + 12222 + 111112 + 111122 + 111212 + 111222 + 112122 + 112212 + 112222 + 121222 + 122222 + 1111112 + 1111122 = 3319619 is prime. [From Jonathan Vos Post (jvospost3(AT)gmail.com), Mar 21 2010]
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CROSSREFS
| Cf. A102659.
Sequence in context: A197505 A191371 A113077 * A075475 A074241 A117694
Adjacent sequences: A135252 A135253 A135254 * A135256 A135257 A135258
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KEYWORD
| easy,nonn,base
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AUTHOR
| Jonathan Vos Post (jvospost3(AT)gmail.com), Nov 30 2007
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