145351

Appears in sequences

• Strong pseudoprimes to base 20.at n=35A020246
• Strong pseudoprimes to base 33.at n=25A020259
• Strong pseudoprimes to base 34.at n=31A020260
• Strong pseudoprimes to base 38.at n=38A020264
• Strong pseudoprimes to base 42.at n=33A020268
• Strong pseudoprimes to base 67.at n=31A020293
• Strong pseudoprimes to base 90.at n=32A020316
• Composite numbers k such that k divides F(k-1) where F(j) are the Fibonacci numbers.at n=31A069106
• Numbers k that divide Fibonacci(k-1) but do not divide Fibonacci(k) - 1.at n=16A094410
• Numbers simultaneously 10-gonal and centered 10-gonal.at n=2A128922
• Semiprimes k that divide Fibonacci(k-1).at n=20A177086
• 10-gonal (or decagonal) numbers with prime indices.at n=42A267217