151686

Appears in sequences

• a(n) = p^3 + p^2 where p = prime(n).at n=15A135178
• Number of words A(n,k), either empty or beginning with the first letter of the cyclic k-ary alphabet, where each letter of the alphabet occurs n times and letters of neighboring word positions are equal or neighbors in the alphabet; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=40A208879
• Number of words, either empty or beginning with the first letter of the cyclic 4-ary alphabet, where each letter of the alphabet occurs n times and letters of neighboring word positions are equal or neighbors in the alphabet.at n=4A209183
• Riordan array (1/(1-3*x), (1-3*x-sqrt(1-6*x+5*x^2))/(2*x)).at n=47A236420