23151

Appears in sequences

• Position of 2^n among the powers of primes (A000961).at n=18A024622
• Positions of cubes among the powers of primes (A000961).at n=27A024627
• Gessel-Stanley triangle read by rows: triangle of coefficients of polynomials arising in connection with enumeration of intransitive trees by number of nodes and number of right nodes.at n=31A029847
• Gessel-Stanley triangle read by rows: triangle of coefficients of polynomials arising in connection with enumeration of intransitive trees by number of nodes and number of right nodes.at n=34A029847
• G.f. satisfies A^6 = BINOMIAL(A^5).at n=5A090358
• Numbers k such that k^2+1 = 2p,(k+1)^2+1 = 5q, (k+2)^2+1 = 10r where p, q, and r are primes.at n=28A181619
• Positions of prime powers p^e with p < e within A000961.at n=25A192187
• Number of partitions of n into a squarefree number of parts.at n=40A286141
• Number of 3 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 5 neighboring 1s.at n=9A297596