5425069447

Appears in sequences

• Numbers k such that k and k+1 are powerful numbers.at n=13A060355
• Primitive elements of A060355: n such that n and n+1 are powerful but n is not of the form 4m(m+1) where m and m+1 are powerful.at n=8A199801
• Suppose that (m, m+1) is a pair of consecutive powerful numbers as defined by A001694. This sequence gives the values of m for which neither m nor m+1 are perfect squares.at n=1A227297
• Numbers n such that both n and n+1 are Achilles numbers (A052486).at n=0A272714
• a(0)=0, a(1)=7 and a(n) = 30*a(n-1) - a(n-2) + 14 for n > 1.at n=7A322709
• a(n) = 1/2 * (-1 + Sum_{k=0..n} binomial(2*n,2*k)*(n+1)^(n-k)*n^k).at n=7A322746
• Smaller of a pair of numbers (m, m+1) such that both are products P of composite prime powers with omega(P) > 1.at n=9A358174
• The smaller of a pair of successive powerful numbers without a nonsquarefree number between them.at n=33A371190