This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A247103 Number of tilings of a 5 X n rectangle using n pentominoes of shapes I, N, P, U, T. 3
 1, 1, 3, 11, 33, 166, 589, 2216, 8935, 33984, 137056, 539085, 2100341, 8324716, 32607928, 128652672, 507032667, 1992083368, 7853132654, 30894420646, 121642017784, 479048967517, 1885229164497, 7423732617043, 29223734864421, 115048209160729, 452968829090506 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Alois P. Heinz, Table of n, a(n) for n = 0..1000 Wikipedia, Pentomino EXAMPLE a(3) = 11: ._____.     ._____.     ._____.     ._____. | | | |     |   | |     | |   |     |_.   | | | | |     | ._| |     | | ._|     | |___| | | | |     |_| ._|     | |_| |     | .___| | | | |     | |_| |     | |   |     |_|   | |_|_|_| (1) |_____| (4) |_|___| (4) |_____| (2) . CROSSREFS Cf. A174249, A233427, A247196. Sequence in context: A032199 A018413 A004662 * A036542 A084266 A052471 Adjacent sequences:  A247100 A247101 A247102 * A247104 A247105 A247106 KEYWORD nonn AUTHOR Alois P. Heinz, Nov 20 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 21 07:20 EDT 2018. Contains 316405 sequences. (Running on oeis4.)