61838

Appears in sequences

• Numbers m such that the square of m is the concatenation of two numbers k and k+5.at n=5A115439
• Number of monohedral disk tilings of type C^t_{3,n}.at n=33A296361
• Let P1>=3, P2, P3 be consecutive primes, with P3-P2=2. a(n)=(P2+P3)/12 when P2-P1 sets a record.at n=14A329158
• Let P1 >= 3, P2, P3 be consecutive primes, with P3 - P2 = 2. a(n) = (P2 + P3)/12 for the first occurrence of (P2 - P1)/2 = n.at n=38A329251
• 6*a(n) - 1 is the least prime p of a pair of twin primes p, p + 2, for which the prime gap immediately below p achieves the size 2*A007494(n).at n=25A337435