A359848 a(n) is the smallest tribonacci number (A000073) with exactly n distinct prime factors.

1, 2, 24, 504, 35890, 8646064, 1697490356184, 120879712950776, 98079530178586034536500564, 748829299860308729347600, 119816209721856219780831547518850, 15418262617564622254988364568360573618470100684551892712710640455037970

Offset

0,2

Links

Table of n, a(n) for n=0..11.

Eric Weisstein's World of Mathematics, Distinct Prime Factors

Eric Weisstein's World of Mathematics, Tribonacci Number

Example

a(4) = 35890, because 35890 is a tribonacci number with 4 distinct prime factors {2, 5, 37, 97} and this is the smallest such number.

Crossrefs

Cf. A000073, A001221, A060319, A359849, A359850.

Sequence in context: A133413 A012236 A186414 * A187658 A138450 A262009

Adjacent sequences: A359845 A359846 A359847 * A359849 A359850 A359851

Keyword

nonn

Author

Ilya Gutkovskiy, Jan 15 2023

Extensions

a(11) from Daniel Suteu, Jan 17 2023

Status

approved