49702

Appears in sequences

• Position where concatenate(1,...,n) occurs for the first time in the decimals of Pi (where 3, 1, 4,... are at position 0, 1, 2,...).at n=4A121280
• Triangle read by rows: row n contains sequence S_n = [s(1), ..., s(n)] where s(1) is the least semiprime pq such that the recurrence s(i+1) = sum of two prime factors of s(i) generates a chain of exactly n semiprimes.at n=57A171095
• Number of nX3 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.at n=3A273962
• Number of nX4 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.at n=2A273963
• T(n,k)=Number of nXk 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.at n=17A273964
• T(n,k)=Number of nXk 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.at n=18A273964
• Number of binary palindromes of length 2n+1 having no (7/3)+ powers.at n=55A279611
• The excess of the number of partitions of n with more odd parts than even parts over the number of partitions of n with more even parts than odd parts.at n=47A338860
• Quotients obtained when sigma(k) divides antisigma(k) with k = A076617(n), sigma (A000203) is the sum of divisors function and antisigma (A024816) is the sum of the non-divisors of n less than n function.at n=28A353000