A359878 a(n) is the index of the smallest tribonacci number (A000073) with exactly n prime factors (counted with multiplicity).

2, 4, 5, 9, 8, 17, 13, 52, 16, 40, 36, 32, 62, 88, 96, 144, 112, 221, 256, 208, 400, 192

Offset: 0

Author

Ilya Gutkovskiy, Jan 16 2023

Keywords

• nonn
• more

Links

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

Crossrefs

Cf. A000073, A001222, A072396, A359850, A359876, A359879.

Extensions

a(17)-a(21) from Daniel Suteu, Jan 18 2023