66264
domain: N
Appears in sequences
- Seventh convolution of A001045(n+1) (generalized (1,2)-Fibonacci), n>=0, with itself.at n=7A073377
- Decimal concatenations of the 38 quintuples (d1,d2,d3,d4,d5) with elements in {2,4,6} for which there exists a prime p >= 7 such that the differences between the 6 consecutive primes starting with p are (d1,d2,d3,d4,d5).at n=31A078870
- Number of 2-cell columns in all deco polyominoes of height n. A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column.at n=7A121639
- a(n) = (number of compositions of n into odd parts) - (number of compositions of n into distinct parts).at n=25A282694
- Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n), where a(0) = 1, a(1) = 5, b(0) = 2, b(1) = 3, b(2) = 4, and (a(n)) and (b(n)) are increasing complementary sequences.at n=19A295952
- Number of even-length compositions of n with alternating parts distinct.at n=22A342532
- a(n) = 2^n * Sum_{k=0..n} binomial(k + n, k) * binomial(2*n - k, n) * (-1/2)^k.at n=7A371399