A379789 Sequence Sb of the eight sequences defining the blocks of terms in A377091.

1, 3, 6, 13, 18, 25, 32, 42, 51, 62, 73, 98, 113, 128, 145, 162, 181, 201, 222, 243, 266, 290, 337, 366, 394, 419, 452, 479, 478, 516, 544, 546, 578, 613, 612, 651, 684, 721, 720, 761, 763, 804, 801, 842, 883, 926, 970, 1057, 1058, 1105, 1156, 1153, 1205, 1202, 1251, 1302, 1353, 1457, 1459, 1513, 1568, 1625, 1683, 1742, 1801

Offset

1,2

Comments

See the comments in A379788 (Sequence Sa) for further information.

Links

Paolo Xausa, Table of n, a(n) for n = 1..1000 (terms 1..513 from N. J. A. Sloane).

Mathematica

(* A377091list is defined at A377091 *)
SequenceCases[A377091list[5000], {_?NonPositive, _?Positive}][[All, 2]] (* Paolo Xausa, Feb 05 2025 *)

Crossrefs

Cf. A377091, A379788, A379790, A379791, A379792, A379793, A379794, A380837.

Sequence in context: A053569 A310123 A293794 * A115283 A078382 A075651

Adjacent sequences: A379786 A379787 A379788 * A379790 A379791 A379792

Keyword

nonn

Author

N. J. A. Sloane, Jan 17 2025

Status

approved