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A116137 a(0)=1. a(n) = a(n-1) + (n-th divisor from the concatenated sequence of divisors of the terms of {a(k)}). 1
1, 2, 3, 5, 6, 9, 10, 15, 16, 18, 21, 27, 28, 31, 40, 41, 43, 48, 58, 59, 62, 67, 82, 83, 85, 89, 97, 113, 114, 116, 119, 125, 134, 152, 153, 156, 163, 184, 185, 188, 197, 224, 225, 227, 231, 238, 252, 280, 281, 312, 313, 315, 319, 324, 332, 342, 362, 402, 403, 444 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..59.

EXAMPLE

The concatenated sequence of divisors of {a(k)} is 1;1,2;1,3;1,5;1,2,3,6;1,3,9;... The 11th term of this divisor sequence is 6. So a(11) = a(10) + 6 = 27.

CROSSREFS

Sequence in context: A025523 A173382 A128689 * A178611 A293976 A173492

Adjacent sequences:  A116134 A116135 A116136 * A116138 A116139 A116140

KEYWORD

nonn,base

AUTHOR

Leroy Quet, Apr 08 2007

EXTENSIONS

More terms from R. J. Mathar, Aug 31 2007

STATUS

approved

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Last modified August 11 18:37 EDT 2020. Contains 336428 sequences. (Running on oeis4.)