38221

Appears in sequences

• Expansion of 1/((1-x)*(1-5*x)*(1-12*x)).at n=4A016239
• Strong pseudoprimes to base 14.at n=12A020240
• a(n) = n^4 - n^2 + 1.at n=14A060886
• a(n) = n^4 - 15*n + 15.at n=13A107253
• Number n such that a2 - n^3 is a triangular number (A000217), where a2 is the least square above n^3.at n=43A233400
• Number of partitions of n into two sorts of parts having exactly 7 parts of the second sort.at n=9A258477
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 115", based on the 5-celled von Neumann neighborhood.at n=38A270183
• Expansion of e.g.f. exp(x / (1 - x^2)^2).at n=7A373620
• Centered heptagonal numbers which are semiprime.at n=38A381960