A205376 Ordered differences of distinct odd squares, stored in triangle.

8, 24, 16, 48, 40, 24, 80, 72, 56, 32, 120, 112, 96, 72, 40, 168, 160, 144, 120, 88, 48, 224, 216, 200, 176, 144, 104, 56, 288, 280, 264, 240, 208, 168, 120, 64, 360, 352, 336, 312, 280, 240, 192, 136, 72, 440, 432, 416, 392, 360, 320, 272, 216, 152

Offset

1,1

Comments

a(n) = 8*A049777(n). For a guide to related sequences, see A204892.

Triangle T(n,k), k>=0, n>=1, read by rows, given by T(n,k) = (2*n+1)^2 - (2*k+1)^2. - Philippe Deléham, Mar 07 2013

Links

Table of n, a(n) for n=1..54.

Example

a(1) = s(2)-s(1) =  9-1 = 8,
a(2) = s(3)-s(1) = 25-1 = 24,
a(3) = s(3)-s(2) = 25-9 = 16,
a(4) = s(4)-s(1) = 49-1 = 48,
a(5) = s(4)-s(2) = 49-9 = 40.
Triangle begins:
8
24,  16
48,  40,  24
80,  72,  56,  32
120, 112, 96,  72,  40
168, 160, 144, 120, 88, 48, ... - Philippe Deléham, Mar 07 2013

Mathematica

(See the program at A205378.)

Crossrefs

Cf. A205378, A204892.

Sequence in context: A172390 A250035 A263630 * A088448 A005878 A128637

Adjacent sequences: A205373 A205374 A205375 * A205377 A205378 A205379

Keyword

nonn,tabl

Author

Clark Kimberling, Jan 26 2012

Status

approved