A385996 a(n) is the least k such that some value appears n times among A002487(0), ..., A002487(k).

0, 2, 4, 8, 16, 28, 34, 44, 52, 62, 68, 88, 104, 124, 130, 152, 184, 200, 232, 250, 260, 296, 328, 380, 388, 440, 472, 500, 524, 568, 632, 688, 764, 772, 848, 904, 968, 1012, 1030, 1064, 1144, 1232, 1288, 1424, 1534, 1538, 1648, 1784, 1840, 1928, 2008, 2038

Offset: 1

Author

Rémy Sigrist, Jul 14 2025

Keywords

• nonn

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..10000
• Rémy Sigrist, C++ program
• Index entries for sequences related to Stern's sequences

Crossrefs

See A385995 for the corresponding values.

Cf. A002487, A091948.

Formula

A091948(a(n)) = n (this is the first occurrence of n in A091948).