50766

Appears in sequences

• Number of (n+2) X (2+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 or 00000101.at n=11A259766
• a(n) = coefficient of x^n in A(x) such that 2 = Sum_{n=-oo..+oo} (-1)^n * x^(n*(3*n-1)/2) * A(x)^(3*n) * (1 + x^n*A(x)).at n=7A359914
• Centered pentagonal numbers which are products of three distinct primes.at n=21A364610
• Centered pentagonal numbers that are abundant.at n=24A382696