A345357 - OEIS

A345357

Numbers m > 4 such that [m-2..m+2] belong to A327261.

5, 717, 2637, 14157, 89037, 112077, 149517, 156957, 180477, 235917, 255357, 267837, 269997, 293037, 399357, 447837, 533517, 592557, 679677, 703917, 770157, 909837, 929997, 1043997, 1158237, 1257597, 1283037, 1296477, 1333197, 1369197, 1500237, 1971357, 1998717, 2062557, 2099997

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Terms > 5 have 7 for their units digit. This is because the units digit of A327261 terms can't be 0 or 3 (row 3 of A327259 has all numbers that end in 0 or 3) and there are at most 2 consecutive even terms (see comment for A327263).

LINKS

David Lovler, Table of n, a(n) for n = 1..58

PROG

(PARI) T319929(n, k) = if (n%2, if (k%2, n+k-1, k), if (k%2, n, 0));

T(n, k) = 2*n*k - T319929(n, k); \\ A327259

list(nn) = {my(list = List()); for (n=2, nn, for (k=2, nn\n, listput(list, T(n, k)); ); ); setminus([1..nn], Set(list)); } \\ A327261

lista(nn) = {my(v=Vec(list(nn))); for (m=5, #v-1, my(x=v[m]); if (vecsearch(v, x-2) && vecsearch(v, x-1) && vecsearch(v, x+1) && vecsearch(v, x+2), print1(x, ", ")); ); }

CROSSREFS

Cf. A340748, A345473, A345474.

Sequence in context: A255912 A213932 A199089 * A260481 A157281 A171269

Adjacent sequences: A345354 A345355 A345356 * A345358 A345359 A345360

KEYWORD

nonn

AUTHOR

David Lovler, Jun 15 2021

STATUS

approved