274878693376
domain: N
Appears in sequences
- Number of strings of length n over GF(4) with trace 0 and subtrace 0.at n=20A073995
- Number of strings of length n over GF(4) with trace 1 and subtrace 0.at n=20A073997
- Number of binary pattern classes in the (2,n)-rectangular grid; two patterns are in same class if one of them can be obtained by reflection or rotation of the other one.at n=19A132390
- Number of binary pattern classes in the (2,n)-rectangular grid: two patterns are in same class if one of them can be obtained by a reflection or 180-degree rotation of the other.at n=20A225826
- Number of binary pattern classes in the (4,n)-rectangular grid: two patterns are in the same class if one of them can be obtained by a reflection or 180-degree rotation of the other.at n=10A225828
- Number of binary pattern classes in the (10,n)-rectangular grid: two patterns are in the same class if one of them can be obtained by a reflection or 180-degree rotation of the other.at n=4A225834
- a(n) = 2^(n-2)*(2^(n+4)-(-1)^n+13).at n=18A240526