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A138529 a(n) = sum{k=1 to n} A138528(k). 1
1, 2, 3, 5, 6, 8, 11, 12, 14, 17, 21, 26, 27, 29, 32, 36, 41, 47, 48, 50, 53, 57, 62, 68, 75, 83, 84, 86, 89, 93, 98, 104, 111, 119, 128, 138, 149, 150, 152, 155, 159, 164, 170, 177, 185, 194, 204, 215, 227, 228, 230, 233, 237, 242, 248, 255, 263, 272, 282, 293, 305, 318, 332, 333, 335, 338 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Cf. A138528.

Sequence in context: A028794 A028966 A028767 * A035057 A005099 A161720

Adjacent sequences:  A138526 A138527 A138528 * A138530 A138531 A138532

KEYWORD

easy,nonn

AUTHOR

Leroy Quet Mar 23 2008

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Last modified February 14 07:46 EST 2012. Contains 205597 sequences.