33253

Appears in sequences

• Triangulations of the disk G_{n,2}.at n=6A002711
• Numbers k such that 219*2^k+1 is prime.at n=42A032486
• Records in A098550.at n=48A248647
• Square array T(n,m) (n>=0, m>=0) read by antidiagonals downwards giving number of rooted triangulations of type [n,m] up to orientation-preserving isomorphisms.at n=42A262586
• Semiprimes whose binary and ternary representations are prime when read in decimal.at n=36A279052
• Expansion of g.f. x*(21 + 123*x + 129*x^2 + 4*x^3 + 129*x^4 + 123*x^5 + 21*x^6)/((1 - x)^3*(1 + x + x^2 + x^3)^2).at n=43A377166
• Number of integer partitions of n not containing more ones than any other part.at n=43A381544
• Numerators of the partial sums of 1/d(prime(k)+1), where d is the number of divisors function.at n=42A386921