Number of triangular nXnXn arrays colored with integers 0 upwards introduced in row major order, with no element equal to any neighbor, and containing the value n(n+1)/2-3.
A211900
Number of triangular nXnXn arrays colored with integers 0 upwards introduced in row major order, with no element equal to any neighbor, and containing the value n(n+1)/2-3.
Terms
- a(0) =0a(1) =1a(2) =14a(3) =274a(4) =2315a(5) =11866a(6) =44821a(7) =137859a(8) =365604a(9) =866530a(10) =1880131a(11) =3798191a(12) =7233304a(13) =13108109a(14) =22769020a(15) =38128546a(16) =61840611a(17) =97513599a(18) =149966164a(19) =225531160a(20) =332413361a(21) =481106956a(22) =684879119
External references
- oeis: A211900