45141

Appears in sequences

• Strong pseudoprimes to base 86.at n=15A020312
• Successively larger 3-ball indecomposable ground-state site swaps of A084511 in concatenated decimal notation.at n=19A084512
• 3-almost prime octagonal numbers.at n=26A129927
• Octagonal numbers which are the sums of exactly two positive octagonal numbers.at n=21A136346
• Integers n such that the century defined by the interval [100n+1, 100n+100] (i.e., the (n+1)-st century) contains exactly two Ormiston prime pairs and no other primes.at n=0A162894
• a(n) = n*(4*n^2 - 3*n + 5)/6.at n=40A174723
• Number of partitions of n into 8 or more parts.at n=34A347544
• Octagonal numbers that are the product of three distinct primes.at n=21A382231