The number of unit squares enclosed by the rectangular spiral of which the n-th side has length prime(n).

A356465

The number of unit squares enclosed by the rectangular spiral of which the n-th side has length prime(n).

Terms

    a(0) =0a(1) =2a(2) =6a(3) =12a(4) =27a(5) =59a(6) =113a(7) =179a(8) =257a(9) =359a(10) =497a(11) =747a(12) =963a(13) =1227a(14) =1577a(15) =1799a(16) =2081a(17) =2611a(18) =3223a(19) =3663a(20) =4167a(21) =4817a(22) =5231a(23) =5847a(24) =6657a(25) =7527a(26) =8801a(27) =9869a(28) =10439a(29) =11057

External references