A354813 Positions of +3's in A346242.

21, 33, 39, 51, 57, 69, 87, 93, 111, 123, 129, 130, 141, 159, 177, 183, 190, 201, 213, 219, 231, 237, 249, 267, 291, 303, 309, 310, 321, 327, 339, 370, 381, 393, 411, 417, 430, 447, 453, 471, 489, 501, 519, 537, 543, 573, 579, 591, 597, 610, 633, 669, 670, 681, 687, 699, 717, 723, 730, 753, 771, 789, 790, 807, 813

Offset

1,1

Comments

a(11) = 130 is the first term that is not a multiple of 3.

Links

Table of n, a(n) for n=1..65.

Index entries for sequences related to primorial base

Prog

(PARI) isA354813(n) = (3==A346242(n));

Crossrefs

Cf. A346242.

Sequence in context: A343454 A368949 A298855 * A273201 A260730 A119973

Adjacent sequences: A354810 A354811 A354812 * A354814 A354815 A354816

Keyword

nonn

Author

Antti Karttunen, Jun 07 2022

Status

approved