A109755 Row and column sums of A001223 ( Differences between consecutive primes - see example ).

1, 3, 9, 21, 51, 117, 251, 523, 1077, 2207, 4521, 9283

Offset

0,2

Comments

Resembles the first 6 entries of sequence A005254 (number of weighted voting procedures).

Links

Table of n, a(n) for n=0..11.

Example

Column A - Primes (for reference)
Column B - Distance between consecutive primes
A B
2 1
3 2 3
5 2
7 4 6 9
11 2
13 4 6
17 2
19 4 6 12 21
23 6
29 2 8
31 6
37 4 10 18 30 51
41 2
43 4 6
47 6
53 6 12 18 36 66 117
59 2
61 6 8
67 4
71 2 6 14 32 68 134 251

Crossrefs

Cf. A001223, A037254, A005254.

Sequence in context: A111209 A262444 A372559 * A348403 A005254 A272265

Adjacent sequences: A109752 A109753 A109754 * A109756 A109757 A109758

Keyword

nonn,uned,obsc,less

Author

E.J.P. Vening, Aug 11 2005

Status

approved