cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A178884 a(n) = number of 9-digit primes with digit sum n, where n runs through the non-multiples of 3 in the range [2..80].

Original entry on oeis.org

0, 2, 26, 226, 372, 1457, 3312, 9159, 13320, 32077, 50752, 102027, 138554, 249053, 331920, 535444, 655423, 966278, 1152057, 1546854, 1751100, 2168566, 2374001, 2719026, 2850784, 3029814, 3063907, 3019100, 2943918, 2691740, 2519884, 2134422, 1930862, 1511648, 1303187, 935353, 783315, 514221, 402227, 238252, 182466, 97415, 66012, 30140, 21162, 8438, 4350, 1311, 906, 170, 65, 3, 1
Offset: 1

Views

Author

N. J. A. Sloane, Dec 28 2010

Keywords

Examples

			Digit-sums of 9-digit primes
Sum     count
2       0
4       2
5       26
7       226
8       372
10      1457
11      3312
13      9159
14      13320
16      32077
17      50752
19      102027
20      138554
22      249053
23      331920
25      535444
26      655423
28      966278
29      1152057
31      1546854
32      1751100
34      2168566
...
		

Crossrefs

For 2- through 9-digit primes the counts are in A177868, A178183, A178447, A178571, A178605, A178876, A178879, A178884.