58396

Appears in sequences

• a(n) is the number of subsequences {s(k)} of {1,2,3,...n} such that s(k+1)-s(k) is 1 or 3.at n=24A050228
• Number of 3 X n binary matrices such that any 2 rows have a common 1, up to column permutations.at n=13A052387
• Expansion of 1/(1 - 2*x - x^2 - x^3).at n=12A077939
• Expansion of 1/(1 + 2*x - x^2 + x^3).at n=12A077986
• Molien series for complete weight enumerators of self-dual codes over GF(9) containing the all-ones vector.at n=9A092072