24236

Appears in sequences

• Numbers n such that phi(n) = phi(n-1) - phi(n-2).at n=14A066231
• Sum of the first n twin prime pairs.at n=34A086169
• Sum of the twin prime pairs less than 10^n.at n=2A118552
• Partial sums of number of different shapes formed by bending a piece of wire of length n in the plane A066372.at n=18A178937
• Number of -n..n arrays x(0..2) of 3 elements with nonzero sum and with zero through 2 differences all nonzero.at n=14A200166
• Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the odd squares of an n X 5 array with new integer colors introduced in row major order.at n=5A215742
• T(n,k)=Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the odd squares of an nXk array with new integer colors introduced in row major order.at n=40A215745
• Number of partitions of n such that the number of even parts is a part.at n=42A240573
• a(n) = floor(6^n/(2+sqrt(5))^n).at n=29A240734
• Number of 4Xn 0..1 arrays with every element equal to 0, 1, 2 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=10A302625