Irregular triangular array read by rows. T(n,k) is the number of direct sum decompositions V_1 + V_2 + ... + V_m = GF(2)^n with the dimensions of the V_i corresponding to the k-th partition of n in canonical ordering, n >= 0, 1 <= k <= A000041(n).
A358165
Irregular triangular array read by rows. T(n,k) is the number of direct sum decompositions V_1 + V_2 + ... + V_m = GF(2)^n with the dimensions of the V_i corresponding to the k-th partition of n in canonical ordering, n >= 0, 1 <= k <= A000041(n).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =1a(5) =28a(6) =28a(7) =1a(8) =120a(9) =280a(10) =1680a(11) =840a(12) =1a(13) =496a(14) =9920a(15) =29760a(16) =138880a(17) =277760a(18) =83328a(19) =1a(20) =2016a(21) =166656a(22) =499968a(23) =357120a(24) =19998720a(25) =19998720a(26) =15554560a(27) =139991040a(28) =139991040a(29) =27998208
External references
- oeis: A358165