12271335131
domain: N
Appears in sequences
- Base-2 digits of a(n) are, in order, the first n terms of the periodic sequence with initial period 1,0,1.at n=33A033120
- Base 4 digits are, in order, the first n terms of the periodic sequence with initial period 2,3,1.at n=16A037639
- a(n) = Sum[2^(A001651(i-1)-1), {i,1,n}].at n=22A113836
- Numbers m with A030101(m) XOR A030109(m) = m for the binary representation of m.at n=11A245599
- Numbers that generate rotationally symmetrical XOR-triangles featuring singleton zero bits in a hexagonal arrangement.at n=21A334930