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User:Jason Kimberley/Omega
A001221: Number of distinct primes dividing n (also called omega(n)).
A027748: Triangle in which first row is 1, n-th row (n>1) lists distinct prime factors of n.
A001222: Number of prime divisors of n counted with multiplicity (also called bigomega(n) or Omega(n)).
A027746: Triangle in which first row is 1, n-th row (n>1) gives prime factors of n with repetition.
Patterns in consecutive terms of A001222
A076191: Consecutive differences of A1222.
A115186: Smallest number m such that A1222(m)=A1222(m+1).
List contains those with for some .
list | |
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2 | A045920 |
3 | A045939 |
4 | A045940 |
5 | A045941 |
6 | A045942 |
List contains the starters of record-breaking runs of consecutive integers with A1222.
list | |
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3 | A067813 |
4 | A067814 |
5 | A067820 |
6 | A067821 |
7 | A067822 |
A045984: a(n) = smallest number m such that the n consecutive terms of A1222 starting at m are identical.
A077657: Least number with exactly n consecutive successors, all having the same number of prime factors (counted with multiplicity).
A117969: Start of least run of maximal length of consecutive n-almost primes.
A072875: Smallest starter m for a run of n consecutive numbers, with A1222(m+i-1)=i.