The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS"). Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A240275 Number of 5Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4 1
 10, 72, 2000, 49921, 1363144, 40760821, 1277623744, 41700264862, 1401065174093, 47967535279669, 1662365159922179, 58055815885463615, 2037231165976598098, 71699030982374305133, 2527959942776102405087, 89229063928826842973827 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 5 of A240271 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..3..2..0..2....3..2..2..0....3..0..0..0....2..0..3..3....3..2..0..3 ..3..2..0..0....3..1..2..0....2..3..2..2....2..0..3..3....3..1..2..3 ..2..3..0..2....2..3..2..0....3..2..2..2....3..0..2..2....2..1..2..2 ..3..2..2..0....3..0..2..2....3..1..2..0....2..3..2..2....3..0..2..0 ..2..1..2..2....2..1..0..0....3..2..2..0....3..1..2..0....2..3..2..2 CROSSREFS Sequence in context: A181671 A058111 A223120 * A181402 A003366 A161743 Adjacent sequences:  A240272 A240273 A240274 * A240276 A240277 A240278 KEYWORD nonn AUTHOR R. H. Hardin, Apr 03 2014 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 3 18:30 EST 2020. Contains 338912 sequences. (Running on oeis4.)