Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X 3 array.
A219286
Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X 3 array.
Terms
- a(0) =3a(1) =6a(2) =19a(3) =42a(4) =79a(5) =136a(6) =220a(7) =339a(8) =502a(9) =719a(10) =1001a(11) =1360a(12) =1809a(13) =2362a(14) =3034a(15) =3841a(16) =4800a(17) =5929a(18) =7247a(19) =8774a(20) =10531a(21) =12540a(22) =14824a(23) =17407a(24) =20314a(25) =23571a(26) =27205a(27) =31244a(28) =35717a(29) =40654
External references
- oeis: A219286