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A306108 Numbers with digits in {0,...,5} such that every other digit is strictly less than its neighbors. 0
0, 1, 2, 3, 4, 5, 10, 20, 21, 30, 31, 32, 40, 41, 42, 43, 50, 51, 52, 53, 54, 101, 102, 103, 104, 105, 201, 202, 203, 204, 205, 212, 213, 214, 215, 301, 302, 303, 304, 305, 312, 313, 314, 315, 323, 324, 325, 401, 402, 403, 404, 405, 412, 413, 414, 415, 423, 424, 425, 434, 435, 501, 502, 503, 504, 505, 512, 513, 514 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Terms of A032861 written in base 6.

LINKS

Table of n, a(n) for n=1..69.

FORMULA

a(n) = A007092(A032861(n)).

PROG

(PARI) A(Nmax=100, K=5, A=[0..K], i=vector(2*K, i, max(1, i-K+1)), c(T, v)=apply(t->t+T, v))={for(n=0, oo, for(k=10, K*11, if(k%10<k\10, k%10|| i=concat(i, 1+#A))&& A=concat(A, c(k*10^n, A[i[K*n+k%10+1]..i[K*n+K+1]-1])); #A<Nmax||return(A)))}

CROSSREFS

Cf. A306105 .. A306111 and A297147: analog for bases 3..9 and 10.

Cf. A032862 and A032858 .. A032865 for other bases 3..10.

Sequence in context: A099161 A033077 A190912 * A282033 A111665 A111666

Adjacent sequences: A306105 A306106 A306107 * A306109 A306110 A306111

KEYWORD

nonn,base

AUTHOR

M. F. Hasler, Oct 05 2018

STATUS

approved

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Last modified November 30 19:14 EST 2022. Contains 358453 sequences. (Running on oeis4.)