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A048444
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Concatenation of first n numbers in base 13.
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15
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1, 15, 198, 2578, 33519, 435753, 5664796, 73642356, 957350637, 12445558291, 161792257794, 2103299351334, 355457590375459, 60072332773452585, 10152224238713486880, 1715725896342579282736, 289957676481895898782401
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| a(12) = 1 2 3 4 5 6 7 8 9 A B C = 2103299351334
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MATHEMATICA
| If[STARTPOINT==1, n={}, n=Flatten[IntegerDigits[Range[STARTPOINT-1], 13]]]; Table[AppendTo[n, IntegerDigits[w, 13]]; n=Flatten[n]; FromDigits[n, 13], {w, STARTPOINT, ENDPOINT}] [From Dylan Hamilton (Phalarisbull(AT)gmail.com), Aug 11 2010]
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CROSSREFS
| Cf. A047778, A007908, A014896.
Concatenation of first n numbers in other bases: 2: A047778, 3: A048435, 4: A048436, 5: A048437, 6: A048438, 7: A048439, 8: A048440, 9: A048441, 10: A007908, 11: A048442, 12: A048443, 13: this sequence, 14: A048445, 15: A048446, 16: A048447 [From Dylan Hamilton (Phalarisbull(AT)gmail.com), Aug 11 2010]
Sequence in context: A180789 A078264 A014896 * A002007 A178507 A012566
Adjacent sequences: A048441 A048442 A048443 * A048445 A048446 A048447
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KEYWORD
| nonn,base
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com), May 15 1999.
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