cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-9 of 9 results.

A234605 a(n+1) is next smallest cube ending with a(n), initial term is 0.

Original entry on oeis.org

0, 1000, 1331000, 1003303631331000, 1000000003003300003006603631003303631331000
Offset: 1

Views

Author

Derek Orr, Dec 28 2013

Keywords

Comments

a(6) is too large to include (contains 124 digits).

Crossrefs

Cf. A050646, A050647, A050648, A050650.

Programs

  • Mathematica
    a[n_]:=(Sum[10^((3^i+1)/2),{i,0,n-1}])^3; Array[a,5,0] (* Stefano Spezia, Mar 07 2025 *)

Formula

For n>1, a(n) = 1000*A050646(n-1) = 1000*A050647(n-1)^3.
a(n) = (Sum_{i=0..n-1} 10^((3^i+1)/2))^3. - Max Alekseyev, Jan 07 2015

A234606 a(n+1) is next smallest cube ending with a(n), initial term is 2.

Original entry on oeis.org

2, 512, 17173512, 15625483754992317173512, 15625000000000046875483750000046875967504992315625483754992317173512
Offset: 1

Views

Author

Derek Orr, Dec 28 2013

Keywords

Comments

Next number is 203 decimal digits long.

Crossrefs

Cf. A050646, A050648, A050650, A234605, A234607, A234608, A234609, A234610, A234611.

A234607 a(n+1) is next smallest cube ending with a(n), initial term is 3.

Original entry on oeis.org

3, 343, 1021147343, 1000000302100030421471021147343, 1000000000000000000003000000302100000000003000000604200030421471000000302100030421471021147343
Offset: 1

Views

Author

Derek Orr, Dec 28 2013

Keywords

Comments

The next number has 283 decimal digits.

Crossrefs

Cf. A050646, A050648, A050650, A234606, A234605, A234608, A234609, A234610, A234611.

A234608 a(n+1) is next smallest cube ending with a(n), initial term is 4.

Original entry on oeis.org

4, 64, 157464, 15635127187157464, 15625000000468851250004689525218715635127187157464
Offset: 1

Views

Author

Derek Orr, Dec 28 2013

Keywords

Comments

Next number is 149 decimal digits long.

Crossrefs

Cf. A050646, A050648, A050650, A234606, A234607, A234605, A234609, A234610, A234611.

A234609 a(n+1) is next smallest cube ending with a(n), initial term is 5.

Original entry on oeis.org

5, 125, 91125, 66184391125, 64000194160196344366184391125, 64000000000000000192000194160000000192000388320196344364000194160196344366184391125
Offset: 1

Views

Author

Derek Orr, Dec 28 2013

Keywords

Comments

Next number is 245 decimal digits long.

Crossrefs

Cf. A050646, A050648, A050650, A234606, A234607, A234608, A234605, A234610, A234611.

A234610 a(n+1) is next smallest cube ending with a(n), initial term is 6.

Original entry on oeis.org

6, 216, 16777216, 30525078739416777216, 30517578125091560234375091567734989430525078739416777216
Offset: 1

Views

Author

Derek Orr, Dec 28 2013

Keywords

Comments

Next term has 164 decimal digits.

Crossrefs

Cf. A050646, A050648, A050650, A234606, A234607, A234608, A234609, A234605, A234611.

A234611 a(n+1) is next smallest cube ending with a(n), initial term is 9.

Original entry on oeis.org

9, 729, 1027243729, 1000000302700030542431027243729, 1000000000000000000003000000302700000000003000000605400030542431000000302700030542431027243729
Offset: 1

Views

Author

Derek Orr, Dec 28 2013

Keywords

Comments

Next number is 283 decimal digits long.

Crossrefs

Cf. A050646, A050648, A050650, A234606, A234607, A234608, A234609, A234610, A234605.

A050649 a(n+1)^3 is next smallest cube ending with a(n)^3, initial term is 8.

Original entry on oeis.org

2, 12, 2512, 781252512, 976562500000000781252512, 976562500000000000000000000000000000000000000976562500000000781252512
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Crossrefs

Cf. A050648, A048566, A050643.

Extensions

More terms from Ray G. Opao, Jul 23 2004

A050642 a(n+1) is next smallest nontrivial cube containing a(n) as a substring, initial term is 8.

Original entry on oeis.org

8, 1728, 172808693, 1881728086939619033088
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Crossrefs

Cf. A050643, A048565, A050648.

Formula

a(n) = A050643(n)^3.
Showing 1-9 of 9 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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