-897

Appears in sequences

• a(1) = 0, a(2) = 0; for n > 2, a(n) - a(n-3) - a(n-5) - ... - a(n-p) = n if n is prime, otherwise = 0, where p = largest prime < n.at n=25A002123
• Expansion of 1/((1-x)*(1+x+x^2+2*x^3)).at n=27A077909
• Sequence is {a(4,n)}, where a(m,n) is defined at sequence A110665.at n=17A110669
• A McMullen transform involving x->x+1/x of Lehmer's polynomial gives the polynomial used to get this expansion sequence: p(x)=1 + x + 10 x^2 + 8 x^3 + 44 x^4 + 28 x^5 + 113 x^6 + 57 x^7 + 191 x^8 + 79 x^9 + 227 x^10 + 79 x^11 + 191 x^12 + 57 x^13 + 113 x^14 + 28 x^15 + 44 x^16 + 8 x^17 + 10 x^18 + x^19 + x^20.at n=9A143465
• G.f.: Product_{k>=1} 1/(1+x^k)^k.at n=31A255528
• G.f.: A(x) = Sum_{n=-oo..+oo} (x - x^n)^n.at n=65A290003
• Expansion of Product_{k>=1} (1 - (x*(1 + x))^k).at n=17A309575
• Expansion of Sum_{k>=1} x^k/(1 + x^k)^3.at n=35A320900
• G.f. Sum_{n=-oo..+oo} (x^n - x)^(n+1).at n=66A378582