A397313 Index of n in A396013, or -1 if n never appears.

1, 13, 2, 26, 3, 21, 4, 30, 5, 651, 6, 577, 7, 25, 8, 441, 9, 2924, 10, 20, 11, 2121, 12, 49, 15, 31, 16, 1722, 14, 1764, 17, 29, 18, 42, 19, 2116, 23, 32, 24, 12217, 22, 5550, 28, 48, 34, 6480, 33, 43, 27, 40, 35, 401, 36, 50, 37, 55, 38, 24650, 39, 38809, 46

Offset

2,2

Links

Scott R. Shannon, Table of n, a(n) for n = 2..442

Michael S. Branicky, Python program for OEIS A396013 and A397313

Crossrefs

Cf. A396013, A397314, A397168.

Sequence in context: A008832 A180704 A040168 * A176593 A031066 A154355

Adjacent sequences: A397307 A397311 A397312 * A397314 A397316 A397317

Keyword

nonn

Author

Scott R. Shannon, Jun 20 2026

Status

approved