A051242 Array T by antidiagonals; T(n,k)=k-th binary number d(1),...,d(j) for which exactly n digits d(i) satisfy d(i)=d(j+1-i) (n=0,1,2,...; k=1,2,3,..).

2, 10, 1, 12, 4, 3, 38, 6, 8, 5, 42, 18, 11, 7, 9, 52, 22, 13, 16, 15, 17, 56, 24, 14, 19, 32, 21, 33, 142, 28, 34, 20, 35, 27, 45, 65, 150, 70, 36, 23, 37, 31, 51, 73, 129, 170, 78, 39, 25, 41, 64, 63, 85, 153, 257, 178, 82, 40, 26, 44, 67, 128

Offset

1,1

Links

Table of n, a(n) for n=1..62.

Example

Antidiagonals: {2}; {10,1}; {12,4,3}; ...
Top row: {2,10,12,38,42,...}=A035928.

Crossrefs

Sequence in context: A349623 A113160 A100078 * A234934 A299581 A069287

Adjacent sequences: A051239 A051240 A051241 * A051243 A051244 A051245

Keyword

nonn,base,tabl

Author

Clark Kimberling

Status

approved