A372293 Odd numbers that do not occur in the odd bisection of A371094.

1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 143, 145, 147, 149, 151, 153, 155, 157

Offset

1,2

Comments

Odd numbers that do not occur in array A371100.

Links

Antti Karttunen, Table of n, a(n) for n = 1..14930

Prog

(PARI)
A371094(n) = { my(m=1+3*n, e=valuation(m, 2)); ((m*(2^e)) + (((4^e)-1)/3)); };
isA372293(n) = if(!(n%2), 0, forstep(k=1, n, 2, if(A371094(k)==n, return(0))); (1));

Crossrefs

Setwise difference A005408 \ A372290.

Cf. A371094, A371100.

Subsequences: A004767, A017077.

Sequence in context: A093031 A305468 A143452 * A288452 A338316 A193414

Adjacent sequences: A372290 A372291 A372292 * A372294 A372295 A372296

Keyword

nonn

Author

Antti Karttunen, Apr 26 2024

Status

approved