A359850 a(n) is the index of the smallest tribonacci number (A000073) with exactly n distinct prime factors.

2, 4, 8, 13, 20, 29, 49, 56, 101, 93, 124, 268, 221

Offset: 0

Author

Ilya Gutkovskiy, Jan 15 2023

Keywords

• nonn
• more

Links

• Eric Weisstein's World of Mathematics, Distinct Prime Factors
• Eric Weisstein's World of Mathematics, Tribonacci Number

Crossrefs

Cf. A000073, A001221, A060320, A359848, A359851.

Extensions

a(11)-a(12) from Daniel Suteu, Jan 17 2023