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.

Previous Showing 61-63 of 63 results.

A123838 Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 4 X 4.

Original entry on oeis.org

1, 13, 869, 69479, 6131125, 571764366, 55449596876
Offset: 1

Views

Author

Søren Eilers, Oct 29 2006

Keywords

Crossrefs

Cf. A112389, A123762 - A123827, A123829 - A123849.

A123839 Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 4 X 4 which is symmetric after a rotation by 180 degrees.

Original entry on oeis.org

1, 1, 21, 67, 1565, 6241, 137613, 630193, 13136926
Offset: 1

Views

Author

Søren Eilers, Oct 29 2006

Keywords

Crossrefs

Cf. A112389, A123762 - A123827, A123829 - A123849.

A123840 Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 4 X 4 which is symmetric after a rotation by 90 degrees.

Original entry on oeis.org

1, 1, 1, 1, 13, 19, 25, 165, 713
Offset: 1

Views

Author

Søren Eilers, Oct 29 2006

Keywords

Crossrefs

Cf. A112389, A123762 - A123827, A123829 - A123849.
Previous Showing 61-63 of 63 results.

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

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