39130

Appears in sequences

• T(n, 2n-9), T given by A027926.at n=12A027932
• a(n) = T(2n+1, n+4), T given by A027948.at n=5A027956
• a(n) = greatest number in row n of array T given by A027948.at n=17A027957
• Greatest number in row n of array T given by A027926.at n=17A027988
• Partial sums of A053296.at n=9A053308
• Triangle T(n,k) read by rows: number of k X k symmetric (0,1)-matrices with exactly n entries equal to 1 and no zero rows or columns.at n=62A135589
• Alternating sum of 9-gonal (or decagonal) pyramidal numbers.at n=40A269440
• a(n) = Sum_{k=0..floor(n/2)} binomial(2*n-k-1,n-2*k).at n=9A371870
• Products of 5 distinct primes that are sandwiched between squarefree semiprime numbers.at n=41A376949