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

Author

Antti Karttunen, Feb 03 2025

Keywords

• nonn
• easy
• less

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

• 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).

Crossrefs

Cf. A276086, A380484, A380485 (complement).

Programs

Mathematica

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

PARI

is_A380486(n) = !!((n\6)%5);

PARI

is_A380486(n) = ((n%30)>5);