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.

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A247768 Number of tilings of a 5 X n rectangle using n pentominoes of any but the L shape.

Original entry on oeis.org

1, 1, 3, 36, 177, 1300, 8866, 54849, 372943, 2466986, 16335736, 108823634, 719573862, 4776148981, 31691581679, 210171600724, 1394511598079, 9249464911748, 61356588838016, 407022840274446, 2699962045755658, 17910503042677994, 118809774179725990
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247704.

Formula

a(n) ~ c * d^n, where d = 6.63354739064799173452910396285896274912377276863088340465087347768..., c = 0.09918446577271493875329249874198830860996222825871620867051185835... . - Vaclav Kotesovec, Mar 05 2016

A247769 Number of tilings of a 5 X n rectangle using n pentominoes of any but the N shape.

Original entry on oeis.org

1, 1, 5, 48, 423, 3082, 18998, 133083, 965175, 6907447, 48357538, 337492571, 2379164196, 16812509746, 118525108279, 834050273099, 5871294215587, 41366373307538, 291469733924989, 2053121255070040, 14460522145205162, 101855876591455305, 717493569094700741
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247705.

Formula

a(n) ~ c * d^n, where d = 7.04397539498320599943308475324574337362579863618900362092946272591..., c = 0.15989322823686781502117997501523372089722059935465319293786933934... . - Vaclav Kotesovec, Mar 05 2016

A247770 Number of tilings of a 5 X n rectangle using n pentominoes of any but the P shape.

Original entry on oeis.org

1, 1, 3, 16, 135, 944, 4814, 26435, 158761, 978044, 5847896, 34112584, 200686378, 1192024482, 7093151801, 42038865123, 248625856115, 1472077262971, 8724918986240, 51715149361624, 306384777098954, 1814848220902299, 10751681585808618, 63702848673263049
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247706.

A247771 Number of tilings of a 5 X n rectangle using n pentominoes of any but the T shape.

Original entry on oeis.org

1, 1, 5, 50, 437, 3270, 21720, 160593, 1209537, 8999307, 66054288, 485082083, 3583263174, 26469863097, 195317239597, 1440271919247, 10624063817149, 78389991175482, 578363501074881, 4266856868607953, 31478045125433448, 232231064765922254, 1713315860292710073
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247707.

A247772 Number of tilings of a 5 X n rectangle using n pentominoes of any but the U shape.

Original entry on oeis.org

1, 1, 5, 39, 369, 2908, 19185, 137200, 1022915, 7606043, 55699672, 405617356, 2969215193, 21791407596, 159806458014, 1170659384512, 8574740528977, 62830753812692, 460445907547463, 3374031670320652, 24722398637797408, 181148733466258107, 1327366881461315358
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247708.

A247773 Number of tilings of a 5 X n rectangle using n pentominoes of any but the V shape.

Original entry on oeis.org

1, 1, 5, 38, 329, 2614, 17400, 122843, 901647, 6662758, 48492622, 351153718, 2549170764, 18557754476, 135119522565, 982657665633, 7145326366447, 51965861513279, 377997475235382, 2749505470031020, 19998020429893220, 145451451407796951, 1057925773226867974
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247709.

A247774 Number of tilings of a 5 X n rectangle using n pentominoes of any but the W shape.

Original entry on oeis.org

1, 1, 5, 56, 461, 3558, 23966, 178127, 1362597, 10194184, 75684682, 561877016, 4192125848, 31292310312, 233221376211, 1737652233817, 12950437458383, 96538803978663, 719609376905074, 5363567352622148, 39977107204818978, 297975192242698825, 2221015587432193750
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247710.

A247775 Number of tilings of a 5 X n rectangle using n pentominoes of any but the X shape.

Original entry on oeis.org

1, 1, 5, 55, 493, 3930, 27207, 207118, 1622723, 12544364, 95912510, 732066083, 5616480627, 43128778000, 330817187318, 2536012919124, 19443866141395, 149118307026576, 1143608532988558, 8769818352137034, 67250342436670138, 515711365536657077, 3954797365004436075
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247711.

A247776 Number of tilings of a 5 X n rectangle using n pentominoes of any but the Y shape.

Original entry on oeis.org

1, 1, 5, 44, 321, 2404, 14692, 98831, 684729, 4642752, 31650422, 213894450, 1451388234, 9868405649, 66968132029, 454745989239, 3086695784357, 20954497956277, 142275120134328, 965860855067492, 6557295186301572, 44517125016379779, 302224231486908372
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247712.

A247777 Number of tilings of a 5 X n rectangle using n pentominoes of any but the Z shape.

Original entry on oeis.org

1, 1, 5, 52, 451, 3498, 23502, 173611, 1323447, 9920654, 73573634, 545170514, 4060213800, 30266880736, 225316532881, 1676398961171, 12475867876511, 92870049802057, 691310371544378, 5145544200921776, 38298595223058076, 285066094324142481, 2121840794371117780
Offset: 0

Views

Author

Alois P. Heinz, Sep 23 2014

Keywords

Crossrefs

Column k=0 of A247713.
Previous Showing 61-70 of 75 results. Next