A130446 Integers in [1, 425] expressible as a difference of the terms of the unique optimal Golomb ruler of order 24. See A130444.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72

Offset: 1

Author

Joseph Biberstine (jrbibers(AT)indiana.edu), May 26 2007

Keywords

• fini
• nonn

Comments

This sequence has exactly 276 entries. The union of A130445 with this gives all integers in the range [1,425].

Examples

			a[5]-a[4] = 1. No other difference from the sequence gives 1.
a[10]-a[9] = 2. No other difference from the sequence gives 2.
a[5]-a[3] = 5. No other difference from the sequence gives 5.
		

Links

• Joseph Biberstine (jrbibers(AT)indiana.edu), May 26 2007, Table of n, a(n) for n = 1..276

Crossrefs

Cf. A130444: Main entry. A130445: Integers in [1, 425] not expressible as a difference from A130444.

Programs

Mathematica

A130444 = {0, 9, 33, 37, 38, 97, 122, 129, 140, 142, 152, 191, 205, 208, 252, 278, 286, 326, 332, 353, 368, 384, 403, 425}; Sort[(A130444[[ #[[1]]]] - A130444[[ #[[2]]]]) & /@ Select[Tuples[Range[24], 2], #[[1]] > #[[2]] &]]