68143

Appears in sequences

• Strong pseudoprimes to base 28.at n=19A020254
• Strong pseudoprimes to base 63.at n=30A020289
• Composite and every divisor (except 1) contains the digit 8.at n=11A062678
• Number of partitions p of n such that (number of odd numbers in p) is a part of p.at n=46A241545
• a(0) = 0, and for n > 0, (a(n)) gives the indices n for which d(n) < d(k) for k < n, where d is the difference sequence of (cos k + sin k).at n=29A299640