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A305298 Restricted growth sequence transform of A291763, formed from 2-digits in ternary representation of A291763(n). 4
1, 2, 2, 1, 2, 1, 3, 1, 2, 4, 2, 5, 6, 7, 2, 8, 2, 9, 10, 11, 2, 8, 12, 9, 13, 8, 14, 1, 2, 1, 3, 8, 2, 15, 16, 17, 18, 7, 19, 20, 2, 21, 3, 22, 23, 9, 16, 1, 24, 25, 6, 1, 12, 11, 3, 26, 2, 4, 2, 7, 6, 8, 6, 1, 2, 27, 28, 29, 30, 31, 32, 1, 33, 34, 35, 36, 37, 25, 38, 7, 2, 4, 39, 7, 6, 40, 30, 11, 32, 41, 42, 43, 30, 22, 2, 4, 19, 1, 44, 45, 13, 43, 46, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

For all i, j: a(i) = a(j) => A292262(i) = A292262(j).

For all i, j: a(i) = a(j) => A305432(i) = A305432(j).

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..65537

PROG

(PARI)

A003961(n) = my(f = factor(n)); for (i=1, #f~, f[i, 1] = nextprime(f[i, 1]+1)); factorback(f); \\ From A003961

A048673(n) = (A003961(n)+1)/2;

A254049(n) = A048673((2*n)-1);

A245612(n) = if(n<2, 1+n, if(!(n%2), (3*A245612(n/2))-1, A254049(A245612((n-1)/2))));

A289814(n) = { my (d=digits(n, 3)); fromdigits(vector(#d, i, if (d[i]==2, 1, 0)), 2); } \\ From A289814

A291763(n) = A289814(A245612(n));

rgs_transform(invec) = { my(om = Map(), outvec = vector(length(invec)), u=1); for(i=1, length(invec), if(mapisdefined(om, invec[i]), my(pp = mapget(om, invec[i])); outvec[i] = outvec[pp] , mapput(om, invec[i], i); outvec[i] = u; u++ )); outvec; };

v305298 = rgs_transform(vector(65538, n, A291763(n-1)));

A305298(n) = v305298[1+n];

CROSSREFS

Cf. A245612, A289814, A291763, A292262, A305432.

Cf. also A305296, A305297.

Cf. also A304746, A304748.

Sequence in context: A306911 A344165 A305432 * A298824 A343384 A237615

Adjacent sequences:  A305295 A305296 A305297 * A305299 A305300 A305301

KEYWORD

nonn

AUTHOR

Antti Karttunen, May 31 2018

STATUS

approved

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Last modified September 21 09:52 EDT 2021. Contains 347597 sequences. (Running on oeis4.)