A138102 The number 2*k^2 repeated 2*k^2 times, k=1 to 4.

2, 2, 8, 8, 8, 8, 8, 8, 8, 8, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32

Offset

1,1

Comments

Vaguely related to the number of elements in the Janet table A138102.

Essentially the same as A137575.

Links

Table of n, a(n) for n=1..60.

Albert Tarantola, PSE of Elements (Janet form).

Anonymous, Janet periodic table, Web Elements Chemistry Nexus

Formula

a(n) = A138101(n) - A138100(n).

Example

As triangle:
   2,  2;
   8,  8,  8,  8,  8,  8,  8,  8;
  18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18;
  32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32.

Crossrefs

Cf. A138100, A138101, A137325, A137583, A166071, A001105.

Sequence in context: A389759 A260825 A330763 * A187791 A372260 A245235

Adjacent sequences: A138099 A138100 A138101 * A138103 A138104 A138105

Keyword

nonn,less,fini,full

Author

Paul Curtz, May 03 2008

Extensions

Edited by R. J. Mathar, Oct 07 2009

Status

approved