A359876
a(n) is the smallest tribonacci number (A000073) with exactly n prime factors (counted with multiplicity).
Original entry on oeis.org
1, 2, 4, 44, 24, 5768, 504, 10562230626642, 3136, 7046319384, 615693474, 53798080, 4680045560037375, 35574238430251050319992, 4659412488735286161146176, 23523635785731871586396890786299881280, 79932289960699059086717998848
Offset: 0
a(5) = 5768, because 5768 is a tribonacci number with 5 prime factors (counted with multiplicity) {2, 2, 2, 7, 103} and this is the smallest such number.
A359879
a(n) is the index of the smallest tetranacci number (A000078) with exactly n prime factors (counted with multiplicity).
Original entry on oeis.org
3, 5, 6, 7, 10, 11, 17, 30, 20, 22, 82, 60, 37, 100, 236, 157, 156, 242, 240
Offset: 0
A359880
a(n) is the smallest Fibonacci n-step number with exactly n prime factors (counted with multiplicity).
Original entry on oeis.org
21, 44, 56, 120, 1936, 2000, 2035872, 32512, 265816832, 523008, 8565824256, 67047424, 134156288, 1073463296, 35176050802688, 8589344768, 562914520154112, 18013762856812544, 144112508021833728, 2305819919496904704, 1099509006336, 137438822400
Offset: 2
a(3) = 44, because 44 is a tribonacci number with 3 prime factors (counted with multiplicity) {2, 2, 11} and this is the smallest such number.
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