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Search: id:A126573
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A126573 a(n) = sum of terms in n-th row of triangle A126571. +0
2
1, 5, 12, 23, 36, 60, 78, 105, 132, 170, 201, 254, 290, 344, 397, 456, 502, 584, 637, 722, 793, 881, 946, 1057, 1131, 1233, 1320, 1437, 1516, 1679, 1770, 1892, 2002, 2140, 2254, 2425, 2529, 2675, 2808, 2984, 3100, 3322, 3448, 3621, 3785, 3971, 4108, 4339 (list; graph; listen)
OFFSET

1,2

MATHEMATICA

f[m_, n_] := Block[{k = 0, c = n}, While[c > 0, k++; While[GCD[k, m] > 1, k++ ]; c--; ]; k]; Table[Sum[f[m, n], {m, n}], {n, 50}] (*Chandler*)

CROSSREFS

Cf. A126571, A126574.

Sequence in context: A034971 A025740 A054307 this_sequence A000327 A130624 A066869

Adjacent sequences: A126570 A126571 A126572 this_sequence A126574 A126575 A126576

KEYWORD

nonn

AUTHOR

Leroy Quet (qq-quet(AT)mindspring.com), Dec 28 2006

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 29 2006

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Last modified September 7 15:23 EDT 2008. Contains 143483 sequences.


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