A085899 -id:A085899 - cp's OEIS frontend

A085505 a(n) = ceiling(((1n^0 + 1n^1 + 2n^2 + 4n^3)/(1n^0 + 2n^1 + 1*n^2))^2).

4, 23, 67, 138, 239, 371, 534, 728, 954, 1212, 1501, 1822, 2175, 2560, 2977, 3425, 3906, 4419, 4963, 5539, 6148, 6788, 7461, 8165, 8901, 9669, 10470, 11302, 12166, 13062, 13990, 14951, 15943, 16967, 18023, 19111, 20231, 21384, 22568

Offset: 1

Wang Dan (wangdan01(AT)lycos.com), Aug 19 2003

Cf. A085899, A086790, A086814, A086822.

Table[Ceiling[((1+n+2n^2+4n^3)/(1+2n+n^2))^2],{n,40}] (* Harvey P. Dale, Jun 14 2011 *)

Corrected by M. F. Hasler, Jul 23 2007

A086863 a(n)=floor{square((1n^0+1n^1+2n^2+4n^3)/(1n^0+2n^1+1*n^2))}.

Original entry on oeis.org

4, 22, 66, 137, 238, 370, 533, 727, 953, 1211, 1500, 1821, 2174, 2559, 2976, 3424, 3905, 4418, 4962, 5538, 6147, 6787, 7460, 8164, 8900, 9668, 10469, 11301, 12165, 13061, 13989, 14950, 15942, 16966, 18022, 19110, 20230, 21383, 22567, 23783

Offset: 1

Wang Dan (wangdan01(AT)lycos.com), Aug 20 2003

			a(2)=floor{square((1*2^0+1*2^1+2*2^2+4*2^3)/(1*2^0+2*2^1+1*2^2))}=floor{square(4.77778)}=floor(22.8272)=22

Cf. A086790, A085899.

Definition corrected by M. F. Hasler, Jul 23 2007

cp's OEIS Frontend

A085505 a(n) = ceiling(((1n^0 + 1n^1 + 2n^2 + 4n^3)/(1n^0 + 2n^1 + 1*n^2))^2).

Views

Author

Keywords

Crossrefs

Programs

Mathematica

Extensions

A086863 a(n)=floor{square((1n^0+1n^1+2n^2+4n^3)/(1n^0+2n^1+1*n^2))}.

Views

Author

Keywords

Examples

Crossrefs

Extensions

cp's OEIS Frontend

A085505 a(n) = ceiling(((1*n^0 + 1*n^1 + 2*n^2 + 4*n^3)/(1*n^0 + 2*n^1 + 1*n^2))^2).

Views

Author

Keywords

Crossrefs

Programs

Mathematica

Extensions

A086863 a(n)=floor{square((1*n^0+1*n^1+2*n^2+4*n^3)/(1*n^0+2*n^1+1*n^2))}.

Views

Author

Keywords

Examples

Crossrefs

Extensions

A085505 a(n) = ceiling(((1n^0 + 1n^1 + 2n^2 + 4n^3)/(1n^0 + 2n^1 + 1*n^2))^2).

A086863 a(n)=floor{square((1n^0+1n^1+2n^2+4n^3)/(1n^0+2n^1+1*n^2))}.