155961

Appears in sequences

• Number of primitive (aperiodic) step shifted (decimated) sequence structures using exactly four different symbols.at n=11A056408
• a(n) is the smallest number for which the prime distance A051699 is equal to n.at n=40A077019
• Least positive k such that the distance from k to closest prime = n.at n=40A079582
• Smallest number at distance 2n from nearest prime (variant 2).at n=20A132860
• Pseudoprimes to base 8 that are not squarefree.at n=20A243090