24026

Appears in sequences

• Sum of squares of numbers that can be written as t*n + u*(n+1) for nonnegative integers t,u in exactly four ways.at n=2A076463
• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={0,1,3}.at n=47A079957
• Expansion of (2*x+1)*(4*x^2+8*x+1) / ((x-1)*(3*x^2+3*x+1)*(2*x^3+2*x^2+4*x+1)).at n=8A110686
• Members of 3-cycles of permutation A111273.at n=22A113701
• Number of conjugate-congruent partitions of n.at n=44A137438
• a(n) = 961*n + 1.at n=24A158414
• Table, read by antidiagonals, in which the n-th row comprises A214206(n) in position 0 followed by a second order recursive series G in which each product G(i)*G(i+1) lies in the same row of A001477 (interpreted as a square array - see below).at n=21A182441
• Expansion (1-sqrt(1-4*x))/(2*(1-x^4-x)).at n=10A200966
• Rectangular array: (row n) = b**c, where b(h) = h, c(h) = binomial(2*n-4+2*h,n-2+h), n>=1, h>=1, and ** = convolution.at n=38A213853
• Numbers k such that k!6 - 27 is prime, where k!6 is the sextuple factorial number (A085158).at n=28A289698