Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 n X 2 array.
A219293
Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 n X 2 array.
Terms
- a(0) =3a(1) =7a(2) =17a(3) =35a(4) =62a(5) =103a(6) =165a(7) =257a(8) =390a(9) =577a(10) =833a(11) =1175a(12) =1622a(13) =2195a(14) =2917a(15) =3813a(16) =4910a(17) =6237a(18) =7825a(19) =9707a(20) =11918a(21) =14495a(22) =17477a(23) =20905a(24) =24822a(25) =29273a(26) =34305a(27) =39967a(28) =46310a(29) =53387
External references
- oeis: A219293