A058335 a(n) = least value such that sequence increases and pairwise differences are unique.

1, 4, 5, 10, 12, 22, 35, 49, 64, 84, 100, 122, 141, 169, 225, 271, 295, 338, 399, 465, 547, 579, 670, 745, 816, 917, 993, 1033, 1172, 1258, 1401, 1533, 1644, 1789, 1878, 2106, 2257, 2419, 2571, 2724, 2942, 3006, 3148, 3308, 3475, 3719, 3991, 4272, 4428

Offset: 1

Author

Gerald A. Mischke (Gerald.Mischke(AT)mutualofomaha.com), Dec 13 2000

Keywords

• nonn

Comments

A variation on A005282 (Mian-Chowla, where positive differences of pairs of elements are unique) by starting with a(1) =1, a(2) = 4.

Crossrefs

Cf. A005282, A051788.