A138509 Janet (or left-step) periodic table from right to left. 120 terms. 8 rows, 32 columns without spaces.

2, 1, 4, 3, 12, 11, 10, 9, 8, 7, 6, 5, 20, 19, 18, 17, 16, 15, 14, 13, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 88, 87, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 120, 119, 118, 117, 116, 115, 114, 113, 112, 111, 110, 109, 108, 107, 106, 105, 104, 103, 102, 101, 100, 99, 98, 97, 96, 95, 94, 93, 92, 91, 90, 89

Offset: 1

Author

Paul Curtz, May 10 2008

Keywords

• nonn
• fini
• full

Crossrefs

Cf. A137583, A168380 (first number in each row), A171710, A172002.

Programs

Mathematica

Table[Reverse@ Range[2 Ceiling[n/2]^2] + (# + 1) (3 + 2 #^2 + 4 # - 3 (-1)^#)/12 &[n - 1], {n, 8}] // Flatten (* Michael De Vlieger, Jul 20 2016 *)

Formula

There are respectively A137583 = 2, 2, 8, 8, 18, 18, 32, 32 terms from right to left.