Base 4 digits are, in order, the first n terms of the periodic sequence with initial period 2,0,1,3.

A037716

Base 4 digits are, in order, the first n terms of the periodic sequence with initial period 2,0,1,3.

Terms

    a(0) =2a(1) =8a(2) =33a(3) =135a(4) =542a(5) =2168a(6) =8673a(7) =34695a(8) =138782a(9) =555128a(10) =2220513a(11) =8882055a(12) =35528222a(13) =142112888a(14) =568451553a(15) =2273806215a(16) =9095224862a(17) =36380899448a(18) =145523597793a(19) =582094391175

External references