[go: up one dir, main page]

login
Search: a259154 -id:a259154
     Sort: relevance | references | number | modified | created      Format: long | short | data
Triangle T(n,k) in which n-th row lists in increasing order the values v whose pi-based arithmetic derivative equals n; n>=0, 1<=k<=A259154(n).
+20
4
0, 1, 2, 3, 5, 4, 7, 11, 13, 6, 17, 19, 23, 29, 10, 31, 8, 9, 37, 41, 43, 14, 47, 53, 59, 61, 15, 67, 12, 71, 22, 73, 79, 83, 89, 26, 97, 21, 101, 103, 107, 109, 25, 113, 34, 127, 16, 20, 131, 18, 137, 139, 38, 149, 151, 33, 157, 163, 167, 173, 35, 46, 179
OFFSET
0,3
LINKS
FORMULA
A258851(T(n,k)) = n.
T(n,1) = A258861(n).
T(n,A259154(n)) = A008578(n+1).
T(n,A259154(n)) = A000040(n) for n>0.
EXAMPLE
Triangle T(n,k) begins:
0, 1;
2;
3;
5;
4, 7;
11;
13;
6, 17;
19;
23;
29;
10, 31;
8, 9, 37;
CROSSREFS
Column k=1 gives A258861.
Last elements of rows give A008578(n+1).
Row lengths give A259154.
Row sums give A259155.
KEYWORD
nonn,tabf
AUTHOR
Alois P. Heinz, Jun 19 2015
STATUS
approved
Sum of all values v whose pi-based arithmetic derivative equals n.
+10
2
1, 2, 3, 5, 11, 11, 13, 23, 19, 23, 29, 41, 54, 41, 43, 61, 53, 59, 61, 82, 83, 95, 79, 83, 89, 123, 122, 103, 107, 109, 138, 161, 167, 155, 139, 187, 151, 190, 163, 167, 173, 260, 181, 191, 260, 197, 199, 211, 223, 285, 229, 233, 263, 333, 278, 308, 312, 269
OFFSET
0,2
LINKS
FORMULA
a(n) = Sum_{v>=0, A258851(v)=n} v.
a(n) = Sum_{k=1..A259154(n)} A259153(n,k).
a(n) >= A000040(n) for n>0.
CROSSREFS
Row sums of A259153.
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jun 19 2015
STATUS
approved

Search completed in 0.007 seconds