23495

Appears in sequences

• Numbers k such that sigma(k) = phi(k) + phi(k-1).at n=5A067198
• 2*3*5*6*...*a(n) -+ 1 are primes, with a(n+1) > a(n).at n=45A087900
• Numbers k such that abundance(k) + abundance(k+1) = 2.at n=9A137205
• Expansion of exp(x*sin(x)) = 1 + Sum_{n>0} a(n)*x^(2*n)/(2*n-1)!.at n=6A191298
• Triangular array read by rows: T(m,n) = number of Yamanouchi words of length m that start with n, m >= 1, n = 1..m.at n=68A369588
• a(n) = number of Yamanouchi words of length n that start with 3.at n=11A369590