-1242

Appears in sequences

• Determinant of n X n Hankel matrix whose entries are t(i+j), 0 <= i, j < n, where t is the Thue-Morse sequence.at n=21A056887
• Start with 1, add the next number if one gets a prime then add the next number else subtract the next...at n=51A074170
• Sum at 45 degrees to horizontal in triangle of A081498.at n=44A081499
• Expansion of (1 - 2*x^2)/(1 + x)^4. Third column of Riordan triangle A248156.at n=22A248159
• Expansion of Product_{k>=1} (1-x^(3*k))/(1-x^(2*k)).at n=53A262346
• Expansion of (1-q)^k/Product_{j=1..k} (1-q^j) for k=8.at n=43A275642