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.

User: Suresh Govindarajan

Suresh Govindarajan's wiki page.

Suresh Govindarajan has authored 8 sequences.

A274599 Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+5) rectangle.

Original entry on oeis.org

1, 6, 19, 56, 152, 378, 898, 2042, 4476, 9526, 19740, 39978, 79342, 154650, 296489, 560022, 1043404, 1919708, 3491081, 6280514, 11185375, 19734004, 34509347, 59847208, 102976946, 175877782, 298279841, 502496682, 841161007, 1399559416, 2315201903, 3808746574, 6232651705, 10147431024
Offset: 0

Author

Suresh Govindarajan, Jun 30 2016

Keywords

Comments

This problem was stated in this fashion by R. Kenyon and Ben Young in the Domino Forum (domino@listserv.uml.edu).

Crossrefs

A274598 Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+4) rectangle.

Original entry on oeis.org

1, 5, 14, 40, 103, 247, 567, 1252, 2668, 5539, 11214, 22247, 43300, 82871, 156152, 290202, 532430, 965395, 1731351, 3073660, 5404984, 9420512, 16282463, 27922063, 47527430, 80331385, 134873275, 225015223, 373141724, 615224276, 1008792896, 1645443771, 2670372299, 4312780664, 6933014899
Offset: 0

Author

Suresh Govindarajan, Jun 30 2016

Keywords

Comments

This problem was stated in this fashion by R. Kenyon and Ben Young in the Domino Forum (domino@listserv.uml.edu).

Crossrefs

A274597 Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+3) rectangle.

Original entry on oeis.org

1, 4, 10, 28, 68, 158, 350, 750, 1559, 3170, 6292, 12252, 23445, 44164, 81995, 150288, 272150, 487388, 863887, 1516592, 2638648, 4552488, 7792566, 13239698, 22336630, 37433466, 62337628, 103186612, 169824540, 277967860, 452594316, 733229626, 1182159039, 1897140990, 3031012912
Offset: 0

Author

Suresh Govindarajan, Jun 30 2016

Keywords

Comments

This problem was stated in this fashion by R. Kenyon and Ben Young in the Domino Forum (domino@listserv.uml.edu).

Crossrefs

A274596 Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+2) rectangle.

Original entry on oeis.org

1, 3, 7, 19, 44, 98, 213, 448, 918, 1832, 3584, 6882, 13012, 24220, 44480, 80678, 144697, 256775, 451305, 786008, 1357414, 2325540, 3954366, 6676369, 11196599, 18657454, 30901434, 50884452, 83327163, 135733071, 219978688, 354780782, 569519349, 910130189, 1448166991, 2294680459
Offset: 0

Author

Suresh Govindarajan, Jun 30 2016

Keywords

Comments

This problem was stated in this fashion by R. Kenyon and Ben Young in the Domino Forum (domino@listserv.uml.edu).

Crossrefs

A274594 Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+1) rectangle.

Original entry on oeis.org

1, 2, 5, 12, 29, 64, 139, 286, 582, 1148, 2227, 4234, 7950, 14692, 26842, 48438, 86509, 152902, 267783, 464766, 800095, 1366512, 2316840, 3900502, 6523432, 10841282, 17909533, 29416966, 48055443, 78093926, 126276743, 203211038, 325518314, 519138982, 824414851, 1303853212, 2053981256
Offset: 0

Author

Suresh Govindarajan, Jun 30 2016

Keywords

Comments

This problem was stated in this fashion by R. Kenyon and Ben Young in the Domino Forum (domino@listserv.uml.edu).

Crossrefs

A274582 Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X m square.

Original entry on oeis.org

1, 1, 4, 10, 24, 51, 109, 222, 452, 890, 1732, 3298, 6204, 11470, 20970, 37842, 67572, 119368, 208943, 362389, 623438, 1064061, 1802976, 3033711, 5071418, 8424788, 13913192, 22847028, 37315678, 60631940, 98030644, 157743554, 252671288, 402944731, 639871871, 1011956958
Offset: 0

Author

Suresh Govindarajan, Jun 30 2016

Keywords

Comments

This problem was stated in this fashion by R. Kenyon in the Domino Forum (domino@listserv.uml.edu).

Examples

			a(1)=1 as only the orange in the top layer can be removed. a(2)=4 as there are four oranges in the second layer and any one of them can be removed.
		

Crossrefs

A244252 Total number of incoming edges at depth n in the solid partitions graph.

Original entry on oeis.org

1, 4, 16, 46, 128, 332, 842, 2042, 4846, 11146, 25114, 55310, 119662, 254354, 532784, 1100411, 2245118, 4528212, 9038898, 17868025, 35006932, 68008606, 131083778, 250774482, 476372848, 898837825, 1685107392, 3139812791, 5816015908, 10712596279, 19625001436, 35765137033, 64853219808, 117031972499, 210211082354, 375886565558, 669232663688, 1186538314110, 2095236499224, 3685445929502
Offset: 1

Author

Suresh Govindarajan, Jun 23 2014

Keywords

Comments

The solid partition graph is constructed as a directed graph whose vertices are solid partitions. The root vertex of the graph is the unique solid partition with one node. Given a solid partition, draw on outward directed edge to all solid partitions that can be obtained by the addition of a single node to the solid partition. The depth of a given vertex is given by the number of its nodes.

Examples

			a(2) = 4 as all four solid partitions of 2 are connected to the root vertex.
		

Crossrefs

A179855 Number of 8-dimensional partitions of n.

Original entry on oeis.org

1, 9, 45, 201, 819, 3231, 12321, 46209, 170370, 621316, 2240838, 8011584, 28395213, 99845553, 348333411, 1205925033, 4142850423
Offset: 1

Author

Suresh Govindarajan, Jan 11 2011

Keywords