a(n) is the number of interior points in the n-th figure shown in A255011 (meaning the figure with 4n points on the perimeter), counted with multiplicity.

A334697

a(n) is the number of interior points in the n-th figure shown in A255011 (meaning the figure with 4n points on the perimeter), counted with multiplicity.

Terms

    a(0) =1a(1) =50a(2) =363a(3) =1360a(4) =3665a(5) =8106a(6) =15715a(7) =27728a(8) =45585a(9) =70930a(10) =105611a(11) =151680a(12) =211393a(13) =287210a(14) =381795a(15) =498016a(16) =638945a(17) =807858a(18) =1008235a(19) =1243760a(20) =1518321a(21) =1836010a(22) =2201123a(23) =2618160a(24) =3091825a(25) =3627026a(26) =4228875a(27) =4902688a(28) =5653985a(29) =6488490

External references