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A117176 The Inverse-Shift-Moebius transform of [1,2,3,4,...]. 2
1, 3, 5, 8, 10, 16, 16, 24, 27, 35, 35, 51, 45, 65, 70, 79, 77, 107, 96, 132, 128, 146, 145, 193, 169, 211, 218, 251, 235, 308, 262, 335, 330, 373, 377, 449, 384, 483, 489, 555, 507, 638, 559, 696, 682, 726, 709, 873, 765, 923, 894, 995, 945, 1159, 1050, 1223 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See triangle A117170 for the definition of the Inverse-Shift-Moebius transform.

LINKS

Table of n, a(n) for n=1..56.

FORMULA

a(n) = Sum_{k=1,n} A117170(n,k)*k.

PROG

(PARI) {a(n)=sum(k=1, n, prod(i=0, n, matrix(n, n, r, c, if(r>=c, if((r+i)%(c+i)==0, 1, 0))))[n, k]*k)}

CROSSREFS

Cf. A117170, A117175.

Sequence in context: A117467 A310025 A133097 * A212987 A217919 A127700

Adjacent sequences:  A117173 A117174 A117175 * A117177 A117178 A117179

KEYWORD

nonn

AUTHOR

Wouter Meeussen and Paul D. Hanna, Mar 05 2006

STATUS

approved

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Last modified November 15 06:11 EST 2019. Contains 329144 sequences. (Running on oeis4.)