A046064 Not a product of partition numbers (A000041).

13, 17, 19, 23, 26, 29, 31, 34, 37, 38, 39, 41, 43, 46, 47, 51, 52, 53, 57, 58, 59, 61, 62, 65, 67, 68, 69, 71, 73, 74, 76, 78, 79, 82, 83, 85, 86, 87, 89, 91, 92, 93, 94, 95, 97, 102, 103, 104, 106, 107, 109, 111, 113, 114, 115, 116, 117, 118, 119, 122, 123, 124, 127

Offset

1,1

Links

Robin Jones, Table of n, a(n) for n = 1..10000

G. K. Patil, Ramanujan's Life And His Contributions In The Field Of Mathematics, International Journal of Scientific Research and Engineering Studies (IJSRES), 1(6) (2014), ISSN: 2349-8862.

Eric Weisstein's World of Mathematics, Abelian Group.

Eric Weisstein's World of Mathematics, Partition Function P Congruences.

Maple

with(combinat): A000041:=proc(n) options remember: RETURN(numbpart(n)): end: partdiv:=proc(m, i) local j, q, f: f:=0: for j from i by -1 to 2 while(f=0) do if(irem(m, A000041(j))=0) then q:=iquo(m, A000041(j)): if(q=1) then RETURN(1) else f:=partdiv(q, j) fi fi od: RETURN(f): end: for i from 2 to 14 do for n from A000041(i) to A000041(i+1)-1 do m:=partdiv(n, i): if m=0 then printf("%d, ", n) fi od od: # C. Ronaldo

Crossrefs

Cf. A000041, A046056, A046063, A033637.

Sequence in context: A052055 A272119 A075761 * A322274 A008365 A132077

Adjacent sequences: A046061 A046062 A046063 * A046065 A046066 A046067

Keyword

nonn

Author

Eric W. Weisstein

Status

approved