264083

Properties

Appears in sequences

• Number of n X n symmetric binary arrays with rows, considered as graycode numbers, in nondecreasing order.at n=6A162056
• Number of n X n symmetric binary arrays with rows, considered as graycode numbers, in nondecreasing order, and no more than 7 ones in any row or column.at n=6A162062
• Number of n X n symmetric binary arrays with rows, considered as graycode numbers, in nondecreasing order, and no more than 8 ones in any row or column.at n=6A162063
• Number of n X n symmetric binary arrays with rows, considered as graycode numbers, in nondecreasing order, and no more than 9 ones in any row or column.at n=6A162064
• Primes whose base-9 representation is a square in base 10.at n=38A267821
• Prime numbersat n=23158