A396399 Indices of records of A395994.

1, 17, 19, 25, 31, 35, 41, 55, 61, 77, 85, 91, 109, 113, 119, 121, 127, 143, 167, 187, 197, 217, 221, 247, 257, 281, 289, 323, 361, 389, 391, 437, 451, 467, 473, 481, 493, 509, 527, 533, 589, 629, 667, 697, 713, 779, 817, 851, 893, 943, 949, 961, 979, 989, 1003

Offset

1,2

Comments

Among the first 94 terms there are 15 primes, the last of which is a(38) = 509, and all other terms are semiprimes (except a(1) = 1).

Links

Pontus von Brömssen, Table of n, a(n) for n = 1..94

Index entries for sequences related to Egyptian fractions.

Crossrefs

Cf. A395994, A396400, A396401, A396402.

Sequence in context: A226684 A334287 A249566 * A396400 A205646 A281192

Adjacent sequences: A396396 A396397 A396398 * A396400 A396401 A396402

Keyword

nonn

Author

Pontus von Brömssen, May 24 2026

Status

approved