A334982 a(n) is the earliest start of a run of at least n consecutive primes that are also happy numbers.
7, 19, 3067, 3313, 3313, 11550481, 11550481, 475389133, 1128863117, 1175267983, 19507818293, 176622893141, 176622893141, 495495126109, 4411512992681, 122634868247173, 122634868247173
Offset: 1
Links
- Shyam Sunder Gupta, Happy Numbers, Exploring the Beauty of Fascinating Numbers, Springer (2025) Ch. 7, 209-222.
- Carlos Rivera, Puzzle 1002. Consecutive primes that are also happy numbers, The Prime Puzzles & Problems Connection.
Crossrefs
Cf. A007770.
Extensions
a(11)-a(17) from Giovanni Resta, May 23 2020
a(16) corrected by Giovanni Resta, May 30 2020