159712

Appears in sequences

• Sequence S with property (making all terms distinct) that (i) a(1)=3, (ii) for n in S, a(n)=a(1)+a(2)+...+a(n-1), (iii) for n not in S, a(n)=the smallest number different from a(1), ..., a(n-1) not breaking condition (ii).at n=27A121174
• Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the even squares of an n X n array with new integer colors introduced in row major order.at n=4A215843
• Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the even squares of an n X 5 array with new integer colors introduced in row major order.at n=5A215845
• T(n,k) is the number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the even squares of an n X k array with new integer colors introduced in row major order.at n=40A215847
• Numbers such that the product of their digits is equal to 10 times the sum of their prime factors, without multiplicity.at n=31A306313
• a(n) = 2*binomial(n,2) + 3*binomial(n,3) + 4*binomial(n,4).at n=32A384852