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A114718 a(n) = sum of terms in n-th row of triangle A112599. 2
1, 2, 6, 6, 10, 13, 17, 43, 59, 69, 85, 85, 103, 123, 147, 128, 185, 171, 246, 192, 259, 224, 356, 328, 400, 358, 373, 498, 497, 496, 787, 443, 886, 664, 560, 795, 770, 839, 945, 993, 981, 866, 1083, 1010, 1449, 1173, 1439, 1400, 1656, 1389, 1380, 1526, 1445 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..53.

EXAMPLE

The 7th row of triangle A112599 is [6,1,3,1,2,1,3]. So a(7) = 6+1+3+1+2+1+3 = 17.

MATHEMATICA

f[l_] := Block[{p, t}, p = l[[ -1]]; k = Length@p; t = Table[ Count[ GCD[p, n], 1], {n, k + 1}]; Return@Append[l, t]; ]; Plus @@@ Nest[f, {{1}}, 52] (* Robert G. Wilson v *)

CROSSREFS

Cf. A112599, A114719.

Sequence in context: A306745 A196053 A063210 * A102261 A245486 A147298

Adjacent sequences:  A114715 A114716 A114717 * A114719 A114720 A114721

KEYWORD

nonn

AUTHOR

Leroy Quet, Dec 27 2005

EXTENSIONS

More terms from Robert G. Wilson v, Dec 28 2005

STATUS

approved

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Last modified August 6 19:52 EDT 2020. Contains 336256 sequences. (Running on oeis4.)