31369

Appears in sequences

• Quasi-Carmichael numbers to base 4: squarefree composites n such that (n,2*3) = 1 and prime p|n ==> p-4|n-4.at n=2A029559
• Numerators of continued fraction convergents to sqrt(461).at n=8A041878
• Number of partitions of n into parts not congruent to 0, 2, 12, 14, 16, 18, 20, 30 (mod 32).at n=49A115671
• Expansion of psi(x^4) / phi(-x) in powers of x where phi(), psi() are Ramanujan theta functions.at n=24A187154
• Partitions of n into parts not congruent to 0, +-4, +-6, +-10, 16 (mod 32).at n=48A208856
• Expansion of psi(x^4) / phi(x) in powers of x where phi(), psi() are Ramanujan theta functions.at n=24A210063
• Consider a number n with m decimal digits, m>9. The sequence lists the numbers n such that the prefix of length m-1 and the suffix of length m-1 are both perfect squares.at n=36A244283
• Numbers n such that n*2^2281 - 1 is prime.at n=31A265504
• Numbers whose second digit is not zero and such that removing either the first or last digit leaves a square number.at n=19A343855