25941

Appears in sequences

• Expansion of (1-x)/(1 - 4*x + x^2 + x^3).at n=8A052941
• Number of identity (asymmetric) bracelets (or necklaces) with n red or blue beads such that the beads switch colors when bracelet is turned over.at n=19A066314
• Numbers whose square is a zeroless pandigital number (i.e., use the digits 1 through 9 once).at n=22A071519
• a(n) = ((6*n-17)*4^n - 1)/3.at n=6A072257
• Molien series for complete weight enumerators of Euclidean self-dual doubly-even codes over the Galois ring GR(4,2) that contain the all-ones vector.at n=3A099595
• a(n) = (n + 2/3)*2^(n-1) - 1/2 - (-1)^(n-1)*(1/6).at n=11A127980
• Numbers n such that n contains exactly 5 digits, all distinct, and n^2 contains exactly 9 distinct digits.at n=21A204691
• Number of fixed triangular strip polyedges with n edges.at n=6A213451
• Number of nonnegative solutions to x^2 + y^2 + z^2 < n^2.at n=36A218711
• Rectangular array with all start numbers Me(n, k), k >= 1, for the Collatz operation ud^(2*n), n >= 1, ending in an odd number, read by antidiagonals.at n=41A238475
• Total number of ON cells in the "Ulam-Warburton" two-dimensional cellular automaton of A147562 after A048645(n) generations.at n=34A255264
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 726", based on the 5-celled von Neumann neighborhood.at n=7A273450
• Irregular triangle read by rows: centered moments of the random Laplacian spectral distribution.at n=21A294441
• Numbers whose square contains all of the digits 1 through 9.at n=22A294661
• Solution of the complementary equation a(n) = a(0)*b(n-1) + a(1)*b(n-2) + ... + a(n-1)*b(0) + 1, where a(0) = 1, a(1) = 3, b(0) = 2, and (a(n)) and (b(n)) are increasing complementary sequences.at n=8A296221
• Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=11A298886
• a(0) = 6; thereafter a(n) = 4*a(n-1) + 1.at n=6A323824
• Number of partitions of n with prime rank.at n=46A363241