A380486 Numbers not congruent to {0, 1, 2, 3, 4, 5} mod 30.

6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 96, 97, 98, 99, 100, 101, 102

Offset

1,1

Comments

Numbers congruent to {6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29} mod 30.

Numbers k for which A276086(k) is a multiple of 5.

Links

Table of n, a(n) for n=1..79.

Index entries for linear recurrences with constant coefficients, signature (1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,-1).

Mathematica

Select[Range[0, 102], Mod[#, 30] > 5 &] (* Amiram Eldar, Feb 03 2025 *)

Prog

(PARI) is_A380486(n) = !!((n\6)%5);
(PARI) is_A380486(n) = ((n%30)>5);

Crossrefs

Cf. A276086, A380484, A380485 (complement).

Sequence in context: A030546 A028253 A020715 * A182307 A023384 A053407

Adjacent sequences: A380483 A380484 A380485 * A380488 A380489 A380490

Keyword

nonn,easy,less

Author

Antti Karttunen, Feb 03 2025

Status

approved