A303614 -id:A303614 - cp's OEIS frontend

A303569 a(n) = [x^n] ((Sum_{k=0..n} (k+7)!x^k)/(Sum_{k=0..n} (k+7)!(-x)^k))^(1/8).

1, 2, 2, 80, 158, 9428, 21740, 1814144, 4326566, 480716188, 1138919436, 162673628256, 377710551084, 67537379669352, 153236971128120, 33578612305618176, 74565718435602822, 19669491236331371820, 42886189370197775372, 13410838610779209885664

Offset: 0

Seiichi Manyama, Apr 26 2018

nonn

Seiichi Manyama, Table of n, a(n) for n = 0..444

Cf. A303565, A303567, A303568, A303614.

N=20; x='x+O('x^N); Vec((sum(k=0, N, (k+7)!*x^k)/sum(k=0, N, (k+7)!*(-x)^k))^(1/8))

A303616 a(n) = [x^n] (1/15! * Sum_{k=0..n} (k+15)!*x^k)^(1/8).

Original entry on oeis.org

1, 2, 20, 276, 4544, 84496, 1723960, 37906608, 887437120, 21930970336, 568496401152, 15384167213056, 433012038646112, 12640210696664768, 381804410640552576, 11911194405763099520, 383211218811649633792, 12698182733530048241152

Offset: 0

Seiichi Manyama, Apr 27 2018

nonn

Seiichi Manyama, Table of n, a(n) for n = 0..439

Cf. A303613, A303614.

N=66; x='x+O('x^N); Vec((1/15!*sum(k=0, N, (k+15)!*x^k))^(1/8))

cp's OEIS Frontend

A303569 a(n) = [x^n] ((Sum_{k=0..n} (k+7)!x^k)/(Sum_{k=0..n} (k+7)!(-x)^k))^(1/8).

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PARI

A303616 a(n) = [x^n] (1/15! * Sum_{k=0..n} (k+15)!*x^k)^(1/8).

Views

Author

Keywords

Links

Crossrefs

Programs

PARI

cp's OEIS Frontend

A303569 a(n) = [x^n] ((Sum_{k=0..n} (k+7)!*x^k)/(Sum_{k=0..n} (k+7)!*(-x)^k))^(1/8).

Views

Author

Keywords

Links

Crossrefs

Programs

PARI

A303616 a(n) = [x^n] (1/15! * Sum_{k=0..n} (k+15)!*x^k)^(1/8).

Views

Author

Keywords

Links

Crossrefs

Programs

PARI

A303569 a(n) = [x^n] ((Sum_{k=0..n} (k+7)!x^k)/(Sum_{k=0..n} (k+7)!(-x)^k))^(1/8).