A055059 Positions in A007376 where the partial sums (A054632) yield primes (A055058).

3, 13, 21, 23, 24, 35, 36, 42, 45, 61, 83, 85, 114, 115, 135, 141, 149, 181, 200, 201, 203, 204, 212, 213, 215, 216, 234, 237, 239, 242, 247, 251, 260, 263, 272, 285, 292, 297, 309, 311, 332, 335, 347, 350, 357, 359, 371, 392, 396, 405, 410, 417, 419, 431

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Example

0123456789101112131415161718192021...
--|.................. sum 0+1+2 = prime 3 at position 3
------------|........ sum 0+1+2+3+4+5+6+7+8+9+1+0+1 = prime 47 at position 13
--------------------| sum 0+1+2+3+4+5+6+7+8+9+1+0+1+1+1+2+1+3+1+4+1 = prime 61 at position 21

Crossrefs

Cf. A007376, A054632, A055058.

Sequence in context: A214519 A099502 A145024 * A050903 A117766 A243162

Adjacent sequences: A055056 A055057 A055058 * A055060 A055061 A055062

Keyword

nonn,base

Author

Patrick De Geest, Apr 15 2000

Extensions

Definition amended and offset changed by Georg Fischer, Sep 03 2022

Status

approved