23488

Appears in sequences

• Number of symmetric filaments (strip polyominoes) with n square cells.at n=25A002014
• High-temperature series for Heisenberg model susceptibility on square lattice.at n=5A005401
• a(n) = a(n-1) + a(n-2) + 1 for n>1, a(0)=0, a(1)=4.at n=19A022309
• a(0) = 0, a(1) = 1, a(2) = 1, a(3) = 2, a(4) = 4, for n>3: a(n+1) = SORT[a(n) + a(n-1) + a(n-2) + a(n-3)], where SORT places digits in ascending order and deletes 0's.at n=41A108564
• Table of coefficients of polynomials related to the Dirichlet eta function.at n=29A156919
• a(1)=2; for n >= 2, (2n+1)^3*a(n) = 32n^3*a(n-1) + (21n^3 + 22n^2 + 8n + 1)*binomial(2n-1,n)^4.at n=2A176477
• Numbers that have 10 terms in their Zeckendorf representation.at n=12A179250
• A decomposition of the double factorials A001147.at n=42A185410
• A triangular decomposition of the double factorial numbers A001147.at n=38A185411
• Number of Dyck n-paths all of whose ascents have lengths equal to 1 (mod 3).at n=14A212383
• Numbers decremented by their digit product produce a cube.at n=33A229184
• Number of tilings of a 5 X n rectangle using n pentominoes of shapes L, X.at n=24A234312
• Number of integer partitions of n whose multiplicities cover an initial interval of positive integers.at n=45A317081
• Numbers k which are the product of a cube greater than 1 and a prime, and where k-1 and k-2 are semiprimes.at n=35A350284