a(n) is the integer whose bits encode subset sums of the first n arithmetic numbers (A003601).

A382279

a(n) is the integer whose bits encode subset sums of the first n arithmetic numbers (A003601).

Terms

    a(0) =1a(1) =3a(2) =27a(3) =891a(4) =57339a(5) =7340027a(6) =15032385531

External references