18395

Appears in sequences

• Number of positions that the 3 X 3 X 3 Rubik cube puzzle can be in after exactly n moves, up to equivalence under the full group of order 48 of the cube and with a half-turn is considered to be 2 moves.at n=6A005452
• Seventh column of quintinomial coefficients.at n=11A064056
• n+p(n)+p(p(n)) is a palindrome, where p(n) denotes the n-th prime.at n=33A116037
• Ulam's spiral (NNE spoke).at n=34A143861
• Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 1 vertically.at n=4A208415
• Number of nX5 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 1 vertically.at n=4A208417
• T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 1 vertically.at n=40A208420
• Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 1 vertically.at n=4A208422
• Number of (n+2) X 8 0..1 matrices with each 3 X 3 subblock idempotent.at n=14A224557
• a(n) = OP(sum{i=0,...,n} OP(binomial(n,i))), where OP(n) is the odd part of n (A000265).at n=17A249401
• Binomial transform of A156616.at n=8A294504
• Number of nX3 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=7A302362
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=52A302367
• Regular triangle where T(n,k) is the number of non-isomorphic multiset partitions of k-element multiset partitions of multisets of size n.at n=42A330473
• a(n) = Sum_{k=1..n} (k/gcd(n, k))^4.at n=11A343514
• Expansion of e.g.f. 1/(1 + (exp(x) - 1)^4 / 24).at n=10A354393