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 1-4 of 4 results.

A217964 T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..2 nXk array.

Original entry on oeis.org

3, 3, 9, 9, 17, 27, 17, 91, 77, 81, 37, 321, 835, 343, 243, 77, 1341, 5415, 7765, 1523, 729, 163, 5269, 45043, 93765, 72257, 6761, 2187, 343, 21379, 336927, 1483419, 1602741, 672627, 30013, 6561, 723, 85633, 2675127, 21409033, 48942485, 27317977, 6261827
Offset: 1

Views

Author

R. H. Hardin Oct 16 2012

Keywords

Comments

Table starts
.....3.......3..........9............17...............37..................77
.....9......17.........91...........321.............1341................5269
....27......77........835..........5415............45043..............336927
....81.....343.......7765.........93765..........1483419............21409033
...243....1523......72257.......1602741.........48942485..........1368783313
...729....6761.....672627......27317977.......1616011915.........87208470529
..2187...30013....6261827.....465184959......53384245121.......5551631519475
..6561..133231...58295677....7919256577....1763824455789.....353274013599547
.19683..591427..542717361..134805742899...58280433586547...22477653727743707
.59049.2625409.5052561371.2294680520773.1925743948194651.1430126177007282011

Examples

			Some solutions for n=3 k=4
..1..0..0..0....0..0..2..1....0..0..0..0....1..1..0..0....1..1..0..2
..1..0..1..1....1..1..1..1....1..1..0..2....2..1..0..0....0..0..0..2
..2..2..1..1....1..1..0..0....0..0..0..0....2..1..0..1....0..0..2..2

Links

Crossrefs

Row 1 is A217450

A219128 T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 nXk array.

Original entry on oeis.org

3, 3, 9, 9, 15, 27, 17, 87, 69, 81, 37, 205, 787, 253, 243, 77, 899, 3495, 6981, 1049, 729, 163, 2521, 27993, 42231, 63183, 4205, 2187, 343, 9709, 154447, 717585, 607115, 571149, 16887, 6561, 723, 29747, 1080809, 5940377, 20168447, 8325319, 5167013
Offset: 1

Views

Author

R. H. Hardin Nov 12 2012

Keywords

Comments

Table starts
......3........3............9............17..............37...............77
......9.......15...........87...........205.............899.............2521
.....27.......69..........787..........3495...........27993...........154447
.....81......253.........6981.........42231..........717585..........5940377
....243.....1049........63183........607115........20168447........285332189
....729.....4205.......571149.......8325319.......558561433......12934559893
...2187....16887......5167013.....114689693.....15524812691.....590246442003
...6561....68015.....46755215....1583482167....432020067871...26987000751247
..19683...273471....423105613...21831504231..12027081633341.1232382567427897
..59049..1100135...3828940359..301126108879.334920902829343
.177147..4425449..34650738731.4153227990805
.531441.17801365.313579561365

Examples

			Some solutions for n=3 k=4
..2..2..1..1....1..0..2..2....2..0..2..1....0..0..1..1....0..0..1..1
..1..0..1..0....0..0..1..2....0..0..1..1....0..0..1..2....1..0..1..1
..1..0..0..0....0..0..1..1....2..0..2..1....0..0..1..2....1..1..1..2

Links

Crossrefs

Column 1 is A000244
Column 2 is A217451
Row 1 is A217450

A217645 T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..2 nXk array.

Original entry on oeis.org

3, 3, 3, 9, 9, 9, 17, 27, 27, 17, 37, 91, 163, 91, 37, 77, 293, 877, 877, 293, 77, 163, 959, 5119, 8363, 5119, 959, 163, 343, 3121, 29101, 80653, 80653, 29101, 3121, 343, 723, 10171, 166193, 779051, 1348399, 779051, 166193, 10171, 723, 1523, 33141, 949883
Offset: 1

Views

Author

R. H. Hardin Oct 09 2012

Keywords

Comments

Table starts
....3.......3..........9...........17..............37.................77
....3.......9.........27...........91.............293................959
....9......27........163..........877............5119..............29101
...17......91........877.........8363...........80653.............779051
...37.....293.......5119........80653.........1348399...........22516459
...77.....959......29101.......779051........22516459..........644993621
..163....3121.....166193......7531727.......374406369........18482872753
..343...10171.....949883.....72877045......6249355897.......531602056509
..723...33141....5424617....704989101....104219396757.....15267905480487
.1523..107985...30992313...6820892171...1738366122579....438705879899041
.3209..351855..177045523..65993636901..28998563675605..12606649476815151
.6761.1146471.1011403721.638497154509.483717812615381.362239882955092205

Examples

			Some solutions for n=3 k=4
..1..0..0..2....0..0..0..2....1..1..0..0....0..0..0..0....1..1..0..0
..0..0..0..2....0..0..1..2....1..1..0..0....0..1..0..0....0..0..0..0
..0..0..0..2....0..1..1..2....1..2..2..2....1..2..0..0....0..0..0..2

Links

Crossrefs

Column 1 is A217450

A217547 T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..2 nXk array.

Original entry on oeis.org

3, 3, 3, 9, 3, 9, 17, 9, 9, 17, 37, 17, 81, 17, 37, 77, 37, 289, 289, 37, 77, 163, 77, 1369, 1401, 1369, 77, 163, 343, 163, 5929, 10213, 10213, 5929, 163, 343, 723, 343, 26569, 64473, 128051, 64473, 26569, 343, 723, 1523, 723, 117649, 431241, 1342855, 1342855
Offset: 1

Views

Author

R. H. Hardin Oct 06 2012

Keywords

Comments

Table starts
....3....3........9.........17............37.............77.............163
....3....3........9.........17............37.............77.............163
....9....9.......81........289..........1369...........5929...........26569
...17...17......289.......1401.........10213..........64473..........431241
...37...37.....1369......10213........128051........1342855........15130953
...77...77.....5929......64473.......1342855.......22263471.......404884061
..163..163....26569.....431241......15130953......404884061.....12094757481
..343..343...117649....2824177.....166010145.....7113718205....346695485697
..723..723...522729...18626981....1837220123...126448240507..10077786323603
.1523.1523..2319529..122511585...20265096203..2237636413927.291384560664827
.3209.3209.10297681..806649933..223831206295.39669951994791
.6761.6761.45711121.5309370017.2471187319639

Examples

			Some solutions for n=3 k=4
..2..0..0..0....0..0..2..2....2..2..0..0....0..0..0..2....1..1..1..2
..1..0..0..0....0..0..0..1....1..1..0..0....0..0..0..1....0..0..0..0
..1..1..1..2....0..0..0..1....1..1..1..2....0..0..1..1....0..0..0..0

Links

Crossrefs

Columns 1 and 2 are A217450
Column 3 is A207854(n-1) = A217450^2
Showing 1-4 of 4 results.

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