31468
domain: N
Appears in sequences
- Increasing length runs of consecutive composite numbers (endpoints).at n=12A008995
- First occurrence of exactly n identical terms in A007448.at n=12A016046
- a(1) = 3, a(n) = round(a(n-1)*3/2) for n > 1, using round-to-even method.at n=23A147790
- Number of binary strings of length n with equal numbers of 0011 and 1100 substrings.at n=16A164175
- Numbers k such that the half-open interval (k-5*sqrt(sqrt(k)), k] does not contain primes.at n=8A192319
- Numbers k for which there are no prime numbers in the range (k-4*sqrt(sqrt(k)), k].at n=32A192320
- n such that A205592(n) > n.at n=14A205594
- a(n) = a(n-1)*3/2, if noninteger then rounded to the nearest even integer, with a(1) = 1.at n=25A328262
- Number of compositions (ordered partitions) of n into distinct nonprime parts.at n=53A331917