150090

Appears in sequences

• Denominators of continued fraction convergents to sqrt(669).at n=12A042287
• Binomial transform of A064413.at n=14A065971
• Values of the difference d for 6 primes in arithmetic progression with the minimal start sequence {7 + j*d}, j = 0 to 5.at n=29A206040
• The number of binary sequences of length n for which all patterns {0,1},{0,0},{1,0},{1,1} appear for the first time. In particular, three of the patterns will have appeared at least once before the (n-1)st digit in the sequence and the remaining pattern appears for the first and only time at positions {n-1,n} in the sequence.at n=21A364685